Yeah, I'm not too excited about what they're doing with Two-Face either. It's not that it's and invalid characterization, it's just one that I don't particularly like. I'll just have to look past it I suppose.
I think it's all dependant on how he considers himself. I can
almost accept Two-Face as a gang leader if he truly believes that what he is doing is right.
That's what makes him such a dangerous, unstable man. His constant, unwavering faith in his own intelligence and sole right to protect Gotham. He is so far gone that he could bomb a day-care centre and still tell himself "I did what needed to be done".
The only comparison I can think of is Walter White from
Breaking Bad. In the show, White's actions cause a plane crash which kills a great many people. There's a memorial for the victims, and Walter volunteers to speak. And all he does is rationalise what he did. Claiming that other accidents were worse, dwelling on the low death count or the fact that people forget these immense tragedies anyway.
I think Two-Face is very similar to that. The coin is his tool of avoidance. He may not admit it, but all he does it try and escape responsibility for all the morbid **** that he pulls. And that's the difference between a Two-Face as we saw in
The Long Halloween and 99% of his appearances in
The Animated Series.
I don't think he's a villain who commits evil for the sake of evil. Because he sees himself as being too far above it all, a messiah of sorts. They shouldn't be trying to make him out-Joker The Joker.