I think that the superhero-as-metaphor involves a superhero being some sort of intellectual, emotional, or other such concept writ large. But I don't know that it's a necessary part of the appeal that the superhero be superior.
Kurt BusiekIf there's ever a character who can only serve one metaphor, I'll probably tell one story with that character and be done with it.
Kurt BusiekI tend to think that the best face of humanity is that we learn. We explore, we study, we think.
Kurt Busiek