For the record: This Batman didn't even have a psychological background because his origin wasn't invented yet. The early Batman is also not some disturbed being sitting in his castle, he was a swashbuckler, complete with one-liners. The killing isn't even my problem, it's about characters. But Superman and Hawkman killed, too. So in the next Superman movie he should throw people into their own bullets?
And at that time, neither did The Joker, and it seems Nolan took Jokers first appearance as an influence in TDK. It's a Joker that doesn't really crack jokes, is bland, dark, and brooding. I don't like it, and I've admitted it, but it is "faithful" to the comics, in a way. Why is Nolan's interpretation "good", while Burton's is "bad"?
But you won't learn. I get it. You like the Burton movie. Fine. Doesn't mean that they are close to the source material. If it were a bad movie you would bash it for the unfaithfulness but so it gets away with it. It's just the way it is.
You're just denying what is actually the truth, in order to establish, what you feel, is a solid opinion. It's not a solid opinion, when it seems your logic is flawed. Again, I can say the same thing about TDK, which I do, but I'm not going to deny that it is "faithful" to its source material.
Now, I will say stuff like, "I don't think The Joker should do this or that", and that is just my opinion of what I like most out of the character, but you've got to admit to it. You're just denying the source materiel, and shrugging it off as, "just because it's a good movie", when in reality, it is truthful to the source material, just not the source material that you happen to like. If you don't like the Burton movies, just say so, but don't come up with crazy logic, or loop-holes that don't even make sense.