Well, I don't know. I just said it hasn't been well-explored. I would expect the presence of a significant number of such people to have notable impact on values - what is a person worth? what is "justice", really?, what use of force do we allow, and what don't we?
Consider the Old West. Then consider the period of WWII. Now consider today. We've had major cultural shifts between those times. Your typical person believed different things about right and wrong, what was proper and what wasn't, and so on. Heroes from each time would be different types of people.
Good call. I suppose you could say that, as an add-on to what you're saying, the way culture develops would depend upon the moment of outbreak? Like, if Supers are used as Supersoldiers in WW2, we could see aspects of society form along different lines than they would in our world (a world where the President doesn't have telepaths and super-warriors enforcing politics).
In a world where Supers developed in an Old West setting, we might see more Homesteads and maybe Independent States arise and stay stable: America as we know it may never have formed!
I have this one tpb from England where the Hippies in the 60s gained psionic superpowers and became heroes like "Dr.Love" and other hippie names. Good guy were enlightened peaceniks. Bad guys were Manson-esque, and brought about a dark time called "Helter Skelter", sort of like Ragnarock. Short and sweet, but interesting take.
Well, that depends on what kind of powers we are talking about. If your heroes are Batman, that means one thing. If they are Superman, they are another. Godlike, for example, is a RPG set in WWII, with superhero characters - but a good sniper bullet is still a major danger to the characters. That's radically different from a Superman who can around the world and travel back in time....
In an era with nuclear weapons available, you need to be Superman before fighting back is not an option.
I don't know about that. Fallout on a level to take out even the DC heroes who are a string below Superman would seriously destroy the US itself. Victory wouldn't be worth the cost if it meant exploding New York just to take out costumed heroes.
I'm assuming for much of this that we're talking about a standard Comics company array of heroes: from Luke Cage and Wolverine to Superman and Green Lantern. However, even Heroes level hidden supers got to the point several times in that show, where they either did or almost wiped everything out.
But yeah, fundamentally I think they'd change the game: could you have a president in a world where a Shapeshifter could assassinate and replace him/her? Unless there were measures against them, I think changes would be needed in the system itself.