Defeat in Nothing is a pretty high-stakes loss. To admit defeat to Pierre Anthon is not just to lose, it's to lose to the dude who's been spitting plum pits at you and telling you the best thing you could do for the world is die. It's not like losing a game of cards, it's like losing the game of life itself. Add a 7th grade mindset to that and you might as well have Wile E. Coyote standing beside you with a powder keg. Things get really ugly, really fast when your opponent is an existential nihilist.
Pierre Anthon's death is a defeat.
Pierre Anthon's death is a victory.