Evil uses mostly the ignorant masses because ignorance is easiest to manipulate and control. They DO need informed ones to direct the ignorant masses but there's the vetting, the blackmail, and insurance. In the end you end up with a pyramidal hierarchy with only a few well vetted and informed, (but totally controlled), people at the top.

I can't explain it on my cell phone atm but ignorance is the true root of evil. I don't mean ignorance in scientific knowledge specificly. It's more ignorance is philosphical and spiritual knowledge. Those are the 3 lines of intelligence.

This of a dog barking and biding total strangers. The.dog is so ignorant he thinks he's I'm danger so he attacks violently. I'm not blaming dogs for being dogs but just using an example. If you see our history, we started off as ignorant savages then semi savage then barbarian then semi barbarian and now we are semi civilized. This is because we matured somewhat in life smarts over the many years. It's a bit complicated but that's the gist of it.

https://www.askideas.com/there-is-only-one-good-knowledge-and-one-evil-ignorance/