That's too personal, I'm trying to say something that applies at every scale and every level of selflessness.

Under Saddam, hundreds of Iraqis annually were tortured, raped, and/or murdered for intimidation, crimes of their relatives, fun, punishment for losing international sports games, etc. Made into amputees, put into sausage machines alive, and on and on.

But the population was over 30,000,000, and the best plausible government wouldn't have the best justice system either. So war risks all those millions' lives. Sadaam wasn't killing millions annually - even without the low intensity war of the no-fly zones he probably wouldn't have killed more than hundreds of thousands, as he had done in the past.

If he had had many chemical weapons, it could have been really, really bad.