In the words of a fictional communist villain, "you can't have a nightmare if you never dream". They need to destroy the dreams and fantasies of everyone, because aspirations, hope, creation, and dreams, these things lead to inequity. The NPCs have pathological aphantasia: Creativity and imagination are prohibited from their mind, to imagine a novel idea is simply not allowed.
In the words of a fictional communist villain, "you can't have a nightmare if you never dream". They need to destroy the dreams and fantasies of everyone, because aspirations, hope, creation, and dreams, these things lead to inequity. The NPCs have pathological aphantasia: Creativity and imagination are prohibited from their mind, to imagine a novel idea is simply not allowed.