He was, or so I hear. He's got a bunch of awards and stuff but then he was in a car wreck and couldn't do surgery anymore so now he's a wizard I guess.
Not all of them are, most try to lay low. Some are just a lot more obvious. But I'm from a world where there are famous superheroes who do all kinds of stuff. Tony is super famous because he's one of the first who didn't try to hide his identity. I'd say the magic people are about as safe as anyone else in a world where it seems to want to kill you all the time.