Keatons Batman is based on the same comic ZS used for this batman...soooo its kind of the same thing. I was a kid when Keaton Batman came out, and I didnt know that much about Batman at all really, just what was from the movies. After I started reading the comics and understanding the essence of Batman and the character, I realized he was just trying to appease to a broad audience, and at the time the keaton movie was made, DKR was tearing up the charts and selling tons of books. Of course they are going to make a movie based on that iteration of the character. Bales Batman was a little different, in the sense he would say "Im not going to kill this guy" then blows up the League of Shadows, or when he is driving the tumbler and wrecking cars and blowing **** up left and right. He was a bit reckless, but it could be said because he was new at it since he started out. Like Superman in MoS, how he didnt try and take the fight to less populated areas when they first started fighting etc. But the true essence of character, is that Batman doesnt kill, and he doesnt use guns. Like someone messaged, its been that way for around 60 years.
