At the end of the day, Jack is the leader of Torchwood Three. HE is the one that has to make the tough choices, roll the hard six, and do things nobody else wants to do. Sometimes, that means being the bad guy. So this is for all the "Jacks" out there - making the tough calls and doing the right thing, no matter what the cost.
Spoilers for Torchwood - 2x13 and Doctor Who - 4x13