I'm all for what you are suggesting but the following doesn't resonate true with me.

Specifically, that if psychopaths truly rule the world, it would very much be in their interest to create more psychopaths.

I don't think that's necessarily what a psychopath would want. They want to continue manipulating people they have been able to, to be able to continue feeling superior to them.

They see themselves as superior individuals due to their ability to isolate this inferior feeling of empathy. They wouldn't want to free others of that "burden".