Exactly. Not all supervillains deserve to die, alot CAN be redeemed [Ivy (Discuss ways to preserve plant life, and compromise), Croc (Not complete evil), Catwoman (Petty thief anyways), Mr. Freeze (Find a way to save his wife or give him the funds to do so himself) etc etc] but the ones like Joker, Scarecrow, Black Mask, Mad Hatter, Victor Schazz or whatever and every other complete and utter scumbag piece of shit do not deserve to be free, and at the very least Batman could've found a way to permanently disable or detain them instead of over-relying on a institute that they always escape from if he didn't want to break his oh so precious code that he places above the lives of innocent people. Deep down Batman is no better than any of them, I'd reckon that he gets off on catching and releasing people.