Childish insecurities.
I think that’s very much a part of this. If someone else is in charge, then that person might possibly tell me that I did something wrong. I would hate that. But if I’m in charge, then no one can tell me that I did something wrong. I would be perfect all the time. Like the dictator in North Korea. If I have the power, then no one can criticize me. I can rest easy in the knowledge that I am better than everyone else.
Not childish though