@Aragonius42
VERY early on (around the first village), its said that he no longer feels compassion for humans, he just watched the soldiers massacre the villages without blinking(pun intended)... so the only thing he values is his friends and he values it like a madman.
He cares about nassarick and the monsters of Nassarick because they were made by his friends, anything else can go to shit.
His only goal is to maybe find his friends and he doesn't care (kinda) how he goes about achieving it, thats why hes trying to spread his name.