Here's a quote from The Dark Knight, which is commonly attributed to Bruce Wayne's character growth into a better Batman (full quote for better context):
Bruce Wayne: [while in the underground bat cave] People are dying, Alfred. What would you have me do?
Alfred Pennyworth: Endure, Master Wayne. Take it. They'll hate you for it, but that's the point of Batman, he can be the outcast. He can make the choice that no one else can make, the right choice.
Bruce Wayne: Well today I found out what Batman can't do. He can't endure this. Today you get to say "I told you so."
Alfred Pennyworth: Today, I don't want to.
[pauses for several moments]
Alfred Pennyworth: But I did bloody tell you.
Which choices specifically are we talking about, in this movie, or in the entire Batman universe? I've seen this quote used as an example of what makes Batman grow into such a powerful protagonist, but I don't think there was a stark change of character after that dialogue in the movie.
Was it Bruce Wayne's decision to (try to) reveal himself to the public? Or was it the choice between saving one of the two at the end? To me it didn't seem like something he wouldn't have had to decide regardless of other circumstances, if he was put in this position. I don't see it as character growth, but rather as where the forces of evil have led to.