I think it is. But it all depends on what you consider a "hero" Who can you point to currently in the media, that lives up to the actual definition of hero? If you need help here's some definitions from http://www.rhymezone.com:
noun: the principal character in a play or movie or novel or poem
noun: (classical mythology) a being of great strength and courage celebrated for bold exploits; often the offspring of a mortal and a god
noun: a man distinguished by exceptional courage and nobility and strength