Bane's violence wasn't mindless. This is redundant, but Bane, like many of Batman's key enemies, is a reflection of what Batman could turn into should he cast aside his morals/ethics, whatever. Bane ends up where he does because he never channeled his pain into anything constructive and positive. Personally, I feel that Bane was well-handled, and his death is fine (there's a nuclear bomb about to go off and he and Bats have already done round two, so there's very little left to say and very little time to say it in, exept for the reveal of Talia and her relationship with Bane, which adds a shade of tragedy and sympathy for the character). Whatever happens to John Blake is up to him, but it's clear from the film that he's already made some of the same decisions that Bruce has made, but is seemingly far less maladjusted (much like Dick Grayson).
Edited by JacknifeJohnny - 8/6/12 at 4:13pm