Morality is a strange thing. I played a the kingmaker computer game recently... I had no problem playing the mite against the kobold and having both groups slaughter themselves (with my enthusiast contribution)... and I found a location where a few mammoth were grazing. 180 xp apiece. I attacked them... paused. Reflected. Reloaded.
It is kind of funny. I don't think twice about sniping an enemy in Far Cry, but I feel guilty if I accidentally run over a dog.