This is a sharp and sophisticated reading of early modern political thought. You have captures a core critique leveled by communitarian, classical virtue, and Christian political theorists like Ernest Fortin and John Rist. The Core Argument The critique argues that Thomas Hobbes and John Locke fundamentally shifted the purpose of politics from cultivating virtue to managing self-interest. The Classical View: Ancient thinkers like Aristotle believed the state exists to help citizens live virtuously. The Hobbesian/Lockean Shift: They lowered the bar. They built a framework based on individual survival, rights, and property. They assumed society could function smoothly purely through institutional design and contracts, without needing shared moral virtues. The Unintended Consequence The "unintended consequence" emerges precisely where you noted: the erosion of the social fabric. When you strip away the requirement of personal virtue, you are left with autonomous individual...