What? No, he's not a bad guy, he's just kind of an asshole.

[By no means does Nate think that Law intends to up and murder people with the shards, but he definitely doesn't believe the captain's intentions are altruistic. It's also understandable that he intends to put himself - and therefore, an escape - first, because isn't that kind of a pirate thing? They weren't exactly known for being charitable.

He's a little bit of a jerk, but then, who among them isn't?]

I'm more worried about Caedra. She's probably still pissed that the gods downgraded her powers.