"You look Time Lord."

I guess I kind of feel that if a 900 year old super-genius alien that can travel time can't 'figure out' how to save x, y or z aliens from death there must be failure of will as well as failure of ability (plus, the writers like the angst).

As to 11s liking of that sort of thing ...11 very much seems to be a person determined not to regret, or angst or otherwise feel bad for actions he takes. After 10s over-the-top emo, I'm rather glad of that.

I've always seen the Doctor as a very morally gray person -- he's basically controlling human history and sometimes even to our detriment (Former Prime Minister Jones, for example -- remember, Nine said she'd bring about a new golden age and what is almost the first thing 10 does? Undermine her). There's a lot of thinky stuff about colonialism and gender relations and etc that goes on in Dr. Who and the Doctor is often on the not as sympathetic side of that as we might all wish.