Exactly.

I think the most effective tool of the Tyrant is to develop machinations that allow them to rule by dominating and terrorizing humans from within.

Why kill the "cockroach's" when you can get them to "control" and have contempt for their neighbors to serve the Tyrants interest?

This contempt for others often leads to self contempt.

Which is why I think Einstein was right when he said this:

"The more cruel the wrong that men commit against an individual or a people, the deeper their hatred and contempt for their victim".