I believe he is a ENTP now but just to point this out.
Sure he doesn't dwell on it because well he is a time-lord... but there are many times when he did many...
personally as a ENFP my race being dead would bother me but me being the only one left wouldn't bother
me... I still would be able to socialize with humans who are similar e.c.t but yes I would try to to save my species not to mention my ne wouldn't be very impulsive in that situation.