Moriarty
No doubt you could get things done faster. But there are people who like to keep it.. heroic. Which, I admit, is useful in its own way. But there must be times when the honorable and clean way won't cut it. Like the Joker situations, how many times is he locked up and escaped, only to spread his insanity, ad infinitum? Never wanted his autograph Ending him permanently was the best choice. Of course very few will admit that, even if it is a truth.
By the way, I heard that you have a daughter from the future here. Congratulations. I discovered I have two of my own children here. I do anticipate one in the definite future, but hadn't thought of two before now. Or three, that would be something