Evil persists in societies not merely because individuals commit harmful acts, but because networks stabilize those acts through collective agreement. When a bounded group shares an implicit or explicit understanding to tolerate exploitation, cruelty, or predation, the behavior acquires structural support. It is no longer an isolated deviation; it becomes embedded within a protected social order. The central hypothesis advanced here is that evil endures when three structural conditions converge: collective agreement, normalization within a bounded climate, and sanctioning mechanisms that deter deviation.