Elon is the nearest thing to a counterexample I know.

With his just-the-right-amount-of-foreign charm and his Hollywood parties, he cajoled decision makers to open up a little space for Capitalism in two industries that had been regulatory-captured to the point of death.

And he's bright enough to understand what his staff are telling him, and even listens every once in a while. (Maybe less now than before.)

The exception that proves the rule, but doesn't justify the policies...