Alright so Thrall, who hates slavery, and just fought this Trade Prince... who'd pretty much implied he was going to enslave him alongside the player, spares Gallywix... why?
No one better? - Sassy's right there, management experience and all.
Gallywix is 'a typical goblin'? Uh so what? Thrall's bashed in heads before, I'm not saying Gallywix isn't a capable leader for the goblins, but leaving the vast majority of the people to be slaves or drown in a sinking ship isn't exactly good for business either, it ups the chances he'll end up like his predecessor after all, doesn't it?
I'm just not following Blizzard's reasoning with his storyline, him being allowed to live or remain in power just doesn't seem reasonable to me.