Quote Originally Posted by Jack_Banzai

I've always thought that Superman would be a hard act to buy in today's cynical world. People would be speculating about the seamier side of his life, like what he does for sex, whether he's gay, what his agenda is, etc. Call me nuts, but I would probably think at least twice about a being who is effectively an earthbound god, dressing in bright colors, running around saving people out of (apparently) the goodness of his heart. I don't know. The cityborn Marvel heroes and the skepticism of the public just rings truer to me. The Fantastic Four, they're practically a name brand, people trust them. The old Avengers, same thing. Everyone else is suspect.
Superman has always been the one hero that struck me as actually working.

At some level the JLA and the JSA also name brand heroes. It doesn't matter who is on the JLA, only that it exists. Then by extension current and former members are trusted by default. Since a good portion of the DCU heroes have been JLA members at one point or another leads to the situation where everybody is a hero.