Bilbo´s treachery

[Fordim Hedgethistle]

The only thing that matters to Bilbo is trying to find a way to prevent all-out war and he's willing to betray his friends and give up all hope of treasure if that means he can stop the killing. He's the greatest hero of them all, as he is the only one who thinks it better to give the treasure away and not fight instead of killing for gold.

And I would remind you that the last thing Thorin does before he dies is to beg Bilbo's forgiveness: if he no longer sees what Bilbo has done in a bad way, why on earth should anybody else?