Originally Posted by
SiegePerilous02
Like Agent Z said, by that point in the Nolan films the people of Gotham have gotten a bit more used to characters like Batman, the Joker and the Scarecrow. Even compared to them, Selina's persona isn't as garish. She is never once even referred to as "Catwoman". Nolan's Selina isn't trying to dress like a cat, her goggles flip up into psuedo cat ears as a cute "nod," but they're not deliberately meant to be cat ears. Meanwhile, Bale's Batman is saner than others, but he's still calling himself Batman and dressing up as a demonic creature and snarling like an animal. Vs. her, who isn't doing any of those things.
At a casual glance, he comes across as crazier than she does.
Yeah, but with the way post-Crisis writers started to erase the dichotomy between Clark Kent and Superman, Superman's neurotic tendencies are not what they once were. And this shift coincides with Batman getting darker and more intense. Pre-Crisis, Superman came across as being more off his rocker than Batman, but Frank Miller and John Byrne started to switch them. And both characters are a bit more boring because of it, IMO, because the novelty has worn off.
There is also the fact that in-universe, the average citizen isn't privy to Superman's mental state or even aware that he would have a double life. Batman is blatantly a masked mystery man hiding his identity from everyone. Along with his attitude, he comes across as crazier.
Because his potential mental instability doesn't pair well with his status as a rich white billionaire who acts like he is above the law and dishes out extreme violence and sometimes tortures people for information. And can turn on his supposed friends/allies on a dime. And depending on what is canon in any given week, he's a repeat offender.
Spears and Houston didn't do things that lead to an OMAC-type situation.
I think it also depends on what versions of Bruce we're talking about. Nolan, BTAS, B:TaTB, pre-Crisis, etc. get some leeway when their trauma is touched upon because they otherwise don't act like enormous pricks with a massive chip on their shoulder about it. Other superheroes have violent traumas in their pasts and don't act like he does under certain writers/continuities, so fans might just have less patience for it.