[Professor S]

I don't think the affects of such power on the psyche has ever been properly explored when Superman is considered, unlike with Dr. Manhattan in Watchmen. How has Superman almost never injured someone by accident as Clark Kent considering his power? When you can lift a million pounds, how do you know how to much you need to let up not to kill someone with a "gentle" touch?

Superman isn't too powerful in the books. He is written to be too perfect and we canot relate to that in an imperfect world.

Hell, even Christ made a few mistakes...