Abstract

This article discusses the functional erosion of law, which has shifted from being a protector of justice (regula iuris) to an instrument of power (instrumentum regni) through rigid formalism. This dysfunction erodes substantive justice, creates a moral vacuum in society, and results in ethical degradation, weakened communal responsibility, and a loss of public trust. This article uses normative legal research, specifically tracing the direct causal relationship between the weakening of legal effectiveness and public moral decay, a correlation that is rarely discussed comprehensively in the literature. Through a deconstruction of the crisis of legal legitimacy within the framework of Thomas Aquinas, this article identifies that contemporary legal problems stem from the disconnection of lex humana (positive law) from lex naturalis (natural law) and lex aeterna (eternal law). Law that ignores Aquinas' morality is degraded into lex iniusta (unjust law), losing its validity and moral binding force. The novelty of this article lies in its systematic emphasis on the causal mechanism between the loss of the instrumental power of law and the moral collapse of society. As a solution, this article emphasizes the urgency of restoring the teleological function of law as a guardian of morality and a pillar of civilization. This requires the re-integration of the principle of lex naturalis into the substance and implementation of positive law, making law a moral orthodoxy based on substantive justice and bonum commune. Implementation strategies include the internalization of morality in legislation, the strengthening of legal ethics education, the reconstitution of the legitimacy of legal institutions through accountability and transparency, and the stimulation of morality-based public participation. The revitalization of lex humana as a guardian of morality is a philosophical and practical imperative, requiring collective synergy to revive the moral consciousness of society so that the law authentically reflects universal justice

References

Demu, Georgius Patrik, Chandra Yusuf, and Frengki Hardian, ‘Perlindungan Hukum Bagi Masyarakat Atas Kekosongan Hukum Terhadap Aturan Hukum Werda Notaris Yang Tidak Melapor Dan Menyerahkan Protokol Notaris Kepada Notaris Penerima Protokol’, Cakrawala Repositori IMWI, 6.3 (2023), 435–55 <https://doi.org/10.52851/cakrawala.v6i3.375>

Dewanto, Muhammad, and Adi Saputra, ‘The Ethical Crisis in Law Enforcement Reflects the Failure of Modern Legal Philosophy to Balance Morality and Legality’, Media Hukum Indonesia (MHI), 3.4 (2025), 656–72 <https://doi.org/10.5281/zenodo.17698771>

Filosofis Pencatatan Perkawinan Penghayat Kepercayaan Berdasarkan Nilai-Nilai Pancasila, Kajian, Kajian Filosofis Pencatatan Perkawinan Penghayat, and Laksana Arum Nugraheni, ‘Kajian Filosofis Pencatatan Perkawinan Penghayat Kepercayaan Berdasarkan Nilai-Nilai Pancasila Dan Peraturan Perundang-Undangan Di Indonesia’, Jurnal Paradigma Hukum Pembangunan, 6.1 (2021), 33–58 <https://doi.org/10.25170/paradigma.v6i1.2345>

———, ‘Peran Budaya Hukum Dalam Menghadapi Fenomena Korupsi Di Indonesia’, Locus Journal of Academic Literature Review, 4.8 (2025), 625–38 <https://doi.org/10.56128/LJOALR.V4I8.783>

Fuad, Fokky, ‘Filsafat Hukum Pancasila: Antara Cita Ideal Hukum Dan Nilai Praksis’, Jurnal Ilmiah Mimbar Demokrasi, 13.1 (2013), 1–12 <https://doi.org/10.21009/jimd.v13i1.9096>

hergawan, Anton putra, Cruzaero Wisyae, Firdaus Idrus, and Agun Gunawan, ‘Lex Naturalis Dan Keadilan Universal : Analisis Konsep Hukum Alam Cicero Dalam Filsafat Hukum’, Das Sollen: Jurnal Kajian Kontemporer Hukum Dan Masyarakat, 4.01 (2025) <https://doi.org/10.11111/dassollen.xxxxxxx>

Ivana, Gabriella, and Andriyanto Adhi Nugroho, ‘Akibat Kekosongan Hukum Terhadap Non-Fungible Token Sebagai Pelanggaran Hak Kekayaan Intelektual’, JURNAL USM LAW REVIEW, 5.2 (2022), 708–21 <https://doi.org/10.26623/julr.v5i2.5685>

Jilan, Sausan, Mohammad Fauzan Khalid Zulfikar, Chintya Putri, and Syifa Naika Gustiani, ‘Prinsip Otonomi Moral Dalam Filsafat Hukum Immanuel Kant: Analisis Terhadap Konsep Kebebasan Dan Kewajiban’, Praxis: Jurnal Filsafat Terapan, 2.01 (2024) <https://doi.org/10.11111/praxis.xxxxxxx>

Keilmuan, Pertautan, Ekologi Manusia, Sosiologi Lingkungan, Ekologi Politik, and Arya Hadi Dharmawan, ‘Dinamika Sosio-Ekologi Pedesaan: Perspektif Dan Pertautan Keilmuan Ekologi Manusia, Sosiologi Lingkungan Dan Ekologi Politik’, Sodality, 1.1 (2007), 181062 <https://www.neliti.com/publications/181062/> [accessed 4 March 2026]

Kolb, Robert, ‘The Relationship between International Humanitarian Law and Human Rights Law: A Brief History of the 1948 Universal Declaration of Human Rights and the 1949 Geneva Conventions’, Int’l Rev. Red Cross, 324.324 (1998), 409 <https://doi.org/10.1017/s002086040009121x>

Made, Ni, and Trisna Dewi, ‘Reaktualisasi Nilai Pancasila Dalam Pembangunan Hukum Nasional Di Era Globalisasi’, IJOLARES: Indonesian Journal of Law Research , 3.1 (2025), 1–10 <https://doi.org/10.60153/ijolares.v3i1.95>

Mansyur, Ahmad Yasser, ‘Personal Prophetic Leadership Sebagai Model Pendidikan Karakter Intrinsik Atasi Korupsi’, Jurnal Pendidikan Karakter, 4.1 (2013) <https://doi.org/10.21831/jpk.v0i1.1284>

Muhammad, Nurdinah, ‘Pergerseran Nilai-Nilai Religius: Tantangan Dan Harapan Dalam Perubahan Sosial’, Substantia: Jurnal Ilmu-Ilmu Ushuluddin, 17.2 (2015), 191–202 <https://doi.org/10.22373/SUBSTANTIA.V17I2.3991>

Nurmardiansyah, Eko, ‘Eco-Philosophy Dan Implikasinya Dalam Politik Hukum Lingkungan Di Indonesia’, MELINTAS An International Journal of Philosophy and Religion (MIJPR), 30.1 (2014), 70–104 <https://doi.org/10.26593/mel.v30i1.1283.70-104>

Prud’homme, Nancie, ‘Lex Specialis: Oversimplifying A More Complex and Multifaceted Relationship?’, Israel Law Review, 40.2 (2007), 356–95 <https://doi.org/10.1017/S0021223700013388>

Publikasi, Pusat, Dan Penebitan, Yayasan Al Ma’arif Dawuhan, Ahmad Lukman Nugraha, and Ahmad Hasan Ridwan, ‘Studi Komparatif Makna Kasb Dalam Quran Dan Hadits Perspektif Etos Kerja Max Weber’, Multidisciplinary Journal of Contemporary Islamic Discourse, 1.1 (2026), 13–20 <https://doi.org/10.1016/mjcid.2026.01.012>

Rahmat, Ibnu, ‘Integrasi Etika Moralitas Dalam Prinsip Keadilan Restoratif: Integrasi Etika Moralitas Dalam Prinsip Keadilan Restoratif’, SUA JOURNAL OF LAW, 2.2 (2024), 7–18 <https://jurnal.uniki.ac.id/index.php/sjl/article/view/479> [accessed 4 March 2026]

Ridwan, Agusriansyah, Iranda Nadya Febianty, Kuswandi Dwi Eri Edisam, Demitha Selvira Amellia, and Aullia Vivi Yulianingrum, ‘Dehumanisasi Dan Krisis Kesadaran Hukum Di Era Industri Modern: Kajian Sosiologis Atas Hilangnya Moralitas Dalam Relasi Produksi’, Law, Development and Justice Review, 8.3 (2025), 294–310 <https://doi.org/10.14710/ldjr.8.2025.294-310>

Royhan, Jenniefer, Saraya Gaisan, and Universitas Pasundan, ‘Hukum Dan Moralitas: Dimensi Filosofis Dalam Penegakan Hukum’, Praxis: Jurnal Filsafat Terapan, 2.01 (2024) <https://doi.org/10.11111/praxis.xxxxxxx>

Schindler, Dietrich, ‘The International Committee of the Red Cross and Human Rights’, Int’l Rev. Red Cross, 208.208 (1979), 3 <https://doi.org/10.1017/s0020860400066353>

Syahrial, Mario Fahmi, Handaru Indrian, and Sasmito Adi, ‘Dialektika Hukum Dan Moral Dalam Perspektif Sosiologis: Pengaruh Timbal Balik Dalam Pembentukan Dan Penegakan Hukum’, Maharsi: Jurnal Pendidikan Sejarah Dan Sosiologi, 6.3 (2024), 1–8 <https://doi.org/10.33503/maharsi.v6i3.68>

Tan, Seow Hon, ‘Radbruch’s Formula Revisited: The Lex Injusta Non Est Lex Maxim in Constitutional Democracies’, Canadian Journal of Law & Jurisprudence, 34.2 (2021), 461–91 <https://doi.org/10.1017/cjlj.2021.12>

Vinuesa, Raúl Emilio, ‘Interface, Correspondence and Convergence of Human Rights and International Humanitarian Law’, Y. B. Int’l Human. L., 1 (1998), 69–70 <https://doi.org/10.1017/S1389135900000064>