You have to remember the script itself was by Frank Miller. He himself did those changes, and wanted to show us how bat**** crazy Bruce Wayne actually is. I always find those aspects very interesting, but yah the movies really do a good job portraying Batman as a true hero instead of a damn maniac.
Frank Miller had just lost his damn mind, hasn't he?
No, actually, that was all Darren Aronofsky's ideas. A poor Batman who lives above a garage and was raised in the garage by a black ghetto mechanic called Little Al and the Batmobile being a rusty old black Lincoln with a bus engine in it were Darren Aronofsky's ideas. Darren Aronofsky's concept was a Taxi Driver meets The French Connection style hard R-rated Batman set in the 1970s. Frank Miller said "I'm the lighter one of the team and I'm not used to that."
Frank Miller also said "Darren and I had a blast on YEAR ONE but developed many a friendly difference. Mine lived in the subway and revealed Wayne Manor to Selina in time for a big climax with the Joker. Just to name a couple of the differences. We both submitted separate drafts but the whole works went south when Darren left as director and Warner cleaned house."
http://www.moebiusgraphics.com/phpBB...php?f=2&t=1534
Miller and Aronofsky were both doing different versions of Batman's origin. Neither of them were trying to do completely faithful adaptions of the Year One comic. The difference is Miller was embellishing his Year One by adding more of Catwoman, and the Penguin and the Joker, Batman moving temporary into the underground subway system below Gotham as the first Batcave with Catwoman, which Batman references to in All-Star Batman #10. While Aronofsky was doing his own version.
Here's the Year One script by Frank Miller in a horribly misspelled review which bashes the script for Gordon cheating on his wife with Sarah Essen, which is from the Year One comic.
http://www.aintitcool.com/?q=node/9819
Miller's version also includes some of Aronofsky's influence. Aronofsky wanted a black Alfred talking in urban slang, and the director has the power. Miller likely knew Warner would demand that Alfred be the old white Englishmen he's always been. And Aronofsky wanted the film set in the '70s because Aronofsky wanted to give the film a feel similar to French Connection and Taxi Driver.
Miller said "Ideas pour out of him. In many ways I think I'm the lighter one of the team and I'm not used to that. I can't really talk about what's in the movie, though because I think Warner Brothers would have somebody beat me up. And asking a screenwriter what the movie's going to be like is like asking a doorman whether a building is going to be condemned."
Aronofsky said "I was never planning to direct Year One. I was more interested in writing a screenplay with Frank Miller on Batman. My pitch was always very realistic. I wasn't interested in fantasy I was interested in the psychology of a real man dressing in a disguise to pay out real vengeance. The batmobile was a souped up Lincoln continental with a bus engine. It was technical and rusty and extremely violent. They would have never let us have violence."
http://www.deadprogrammer.com/catego...rren-aronofsky
Miller disagrees with such a realistic Batman. On the documentary Legends of the Dark Knight History of Batman Miller said "People are attempting to bring a superficial reality to superheroes which is rather stupid. They work best as the flamboyant fantasies they are. I mean, these are characters that are broad and big."
Aronofsky said, "It was a hard R-rated Batman. What I pitched them was Travis Bickle meets The French Connection - a real guy running around fighting crime. No super-powers, no villains, just corruption. For the Batmobile I had him taking a bus engine and sticking it in a black Lincoln. Real low-tech geek stuff."
http://www.guardian.co.uk/film/2007/apr/27/1
Aronofsky also said, "I never really wanted to make a Batman film, it was a kind of bait and switch strategy. I was working on Requiem for a Dream and I got a phone call that Warner Bros wanted to talk about Batman. At the time I had this idea for a film called The Fountain which I knew was gonna be this big movie and I was thinking, 'Is Warners really gonna give me $80 million to make a film about love and death after I come off a heroin movie?' So my theory was if I can write this Batman film and they could perceive me as a writer for it."
http://www.cinemablend.com/new/EIFF-...One-13673.html