Hey, Bruce Wayne's a big shot in the DCU. There was one issue of JLA a few years ago where it was decided that everyone should reveal their secret identities to each other, to help foster trust between team members. So everyone unmasked, and there were a few 'oh, hey, I've heard of you' moments, like when Supes revealed that he was really a Pulitzer-winning journalist. Then came Bruce's turn, he pulled up the cowl - and everybody's jaws dropped. It was like he'd just revealed himself as Tom Cruise or somebody - Plastic Man damn near had a fangasm right on the spot.