Rescuing people from a burning building makes you a hero. I would have thought that doing it with super powers wouldn't mean you are any more super than a hero without super powers.... if anything a hero without powers is a lot more brave than one with them.
My son used to run around the house with his pants on his head..... I wondered if that was the first stage of turning into a superhero but these days his pants seem to stay under his trousers so maybe not!