“Heroes are painful, superheroes are a catastrophe.”

This, then, was one of my themes for Dune: Don’t give over all of your critical faculties to people in power, no matter how admirable those people may appear to be. Beneath the hero’s facade you will find a human being who makes human mistakes. Enormous problems arise when human mistakes are made on the grand scale available to a superhero. And sometimes you run into another problem.

It is demonstrable that power structures tend to attract people who want power for the sake of power and that a significant proportion of such people are imbalanced—in a word, insane.

That was the beginning. Heroes are painful, superheroes are a catastrophe. The mistakes of superheroes involve too many of us in disaster.
Dune Genesis by Frank Herbert

The last time I’ve read Dune is many years ago. Perhaps a new reading during my winter break is in order.