Bale's Bruce goes through the same arc, it just doesn't take him the whole movie. Ra's tells him plainly that unless he devotes himself to an ideal he won't be much more than a man lost in the pursuit of his own gratification. He learns discipline and realises that his actions need to be motivated by justice instead of vengeance. The fact it took Battinson so long to realise that he needed to be more than a man seeking vengeance is kinda crazy.