Ordering a buster call on an island, then destroying the boat that was safely carrying the innocents away (which was provided by the marines). Killing weakling marines for fleeing from battle.
These don't seem like jerk-ish actions to you?
I bet that they aren't written out in his job description, either.
I wouldnt call it being a jerk. I think it's just a portrayal of what you get if you had a 100% thorough no hearted justice power.
–- Update From New Post Merge ---
Well anyways. After reading this chapter, i hope people can stop this Luffy-knows-if-someone-is-dead-because-he-has-CoO points.
From last week on the Doflamingo is dead side it was their argument because Luffy could detect Laws life. There is nothing wrong with calling stuff like you see it..