I'd agree with this. I don't need the option to be a pacifist, but I do enjoy minimizing carnage on some playthroughs or, quite the opposite, using such a skill to cause more damage to enemy factions, by being a manipulative bastard.
On another note, anyone know whether there'll be an option to pass on a dialogue "battle"? I think there'll be a bunch of situations where you'd go "Oh, well, if you feel strongly about it I'll just let you win the argument this time".