The YPS-4 classification masks a fundamental divergence in how isekai treats the concept of optimization. Because one operates through authority and the other through physical technicality, a direct power comparison is functionally meaningless. The real conflict lies in their opposing definitions of efficiency. Demiurge views the world as a resource to be harvested, turning human beings into parchment and magical scrolls to satisfy a programmed mandate. His efficiency is systemic and external; he is the definitive administrator of a nightmare, where his lack of Ego serves as a tool for Ainz Ooal Gown. Conversely, Mathias approaches the world as a flawed textbook. He does not seek to rule systems but to correct them, using physics-based phenomena like dust explosions to dismantle the regressed magical common sense of his era. While both characters exist at a nation-level scale, they reveal a split in genre philosophy. Demiurge represents the horror of the ideal subordinate whose growth is merely the execution of a dark design. Mathias represents the clinical obsession of the rigorous scholar who re-engineers his own existence to bypass biological ceilings. One optimizes the slaughter of others; the other optimizes the capacity of the self. This distinction transforms the YPS-4 tier from a measure of destructive output into a study of whether power is used to sustain a regime or to satisfy an intellectual itch.