Diogenes, Sartre, and Noam Chomsky. While I don't always agree with them, all of they all became activist-intellectuals. Diogenes augured a lot about Plato's fascist leanings and Noam Chomsky stressed how important each individual is. Nietzsche assumed that everyone except a few people were worthless. Not surprisingly, the nobles liked his work more than the peasants when his work first came out. Sartre wanted the French out of Algeria.
It's kind of depressing how much popular the authoritative Plot is than Sartre.
I'm kind of curious to see how many of the escapists prefer authoritative philosophers.