Did this episode remind anyone of the original (1978) Battlestar Galactica episode "The Lost Warrior," or does no one remember that show anymore?
So, for once he's thinking about the victims of his mercy on the Daleks, the Master, etc. There are things that definitly set off The Doctor.
Evil is charming and beautiful. It makes you doubt yourself. It asks for one small compromise after another until it whittles you down, and it functions best when no one believes in it. - JOA