Batman: No Kill Rule.
Batman operates with a code, a code that does not in any circumstance justify killing. His decision not to be the executioner that many desire he become has now often lead to super-villains like Bane and the Joker to break out of prison and indulge in mass murdering people. After witnessing Joker setting off a nuke in the 'Injustice' storyline, killing Jason Todd in a 'Death in the family', & crippling Barbara Gordon in 'A Killing Joke', I too have questioned Batman's ways and if his 'No Killing Rule' makes any sense at all. The simple truth is that this self imposed limitation that he would not, despite self-admittedly wanting to, kill anyone is what makes his character that more hero & standout as a pinnacle of Justice. Even when it would be personally gratifying to him, he does not cross that line. That makes him more of a superhero than others. This only shows that he has not been corrupted by the power that he has, it is too easy for ...