I wouldn't be doing it to enjoy it. I'd be doing it as a punishment. To show them how fucked up what they did was. On one hand, you have a man being tortured before it's even verified if he deserved it or not, and on the other, you're doing it to someone who deserves it. Looking at it from any other angle begs to say that logic should not exist, and that any form of murder, killing and torture can be done without any boundaries. In other words, you can freely kill your entire family for no apparent reason and it can not be deemed and something "bad".