Additionally, Superman, or the superhero in general, stands as a metaphor for America's position in the post-Cold War world. Superheroes embody a vision of the use of power unique to America. Superheroes enforce their own visions of right and wrong on others, and they possess overwhelming power, especially in relation to ordinary crooks. They can project power without danger to themselves, and they can effortlessly solve problems that the ordinary authorities cannot handle.
It's interesting how superheroes seem to be such a peculiarly American phenomenon, and the idea that they are the personification of a peculiarly American outlook on how to use power is interesting and not suprising. Their great power is ultimately benificent because they're the GOOD guys that have a very unique role and purpose.
There was an interview with Steve Englehart in the late seventies where someone asked him if he believed Batman was a fascist. Stainless's response was something along the lines of, "Batman's not a fascist...Batman's RIGHT!" Which fit Steve Englehart's view of Batman being a sane man in an insane world, a view that in and of itself is very American.
When mentioning superheroes around the world, he didn't make mention of the Philippines, however, which would really benefit his case of superheroes as being an imported extension of the American way of looking at ourselves; the Philippines after all, was a former American colony and it happens to be where superheroes are really big, just like imported American baseball is the sport of choice for Japan, Cuba, and Puerto Rico.
By the way, I love the loaded question expressed here to Ian Gordon:
Why do you think Chinese superheroes are historical (eg. Song Dynasty's Yue Fei) or are figures from legends (eg. Sun Wukong from Journey to the West), while American superheroes from the 40s and 50s come from science fiction or fantasy?
Do the Chinese really think of their own historical/mythic characters as being similar to American superhero characters?