LH - it was a movie, there are flaws in logic that need to be suspended.   No human being could fly from rooftops, the tricked out car could not operate the way it was portrayed, the odds of Batman being able to keep his identity a secret are slim, the Joker would probably have been plugged before it ever came to that point. Disbelief needs to be suspended to get to the real messages. You are right though, the conspiracies you talk about have nothing to do with Batman movies.