Sam took a deep breath and calmed himself down. It is unlike him to argue with someone else like this, just because he didn't like their worldview and he thought if that worldview is stupid. Maybe the continuous losses are affecting more than he thought they would.
He lost in Gran's hands in the race and he lost in the necromancer battle with Tamas. All the continuous victories over the years he spent in this very world seemed to have really gotten into his head. He is not completely new to losses. But these losses hit him hard and even though nobody judged him until now, he is judging himself.
Throughout his journey, he was invincible in every aspect among his peers. Battle, business, subordinates, status. He maintained his position ahead over the rest of his peers and he managed to defeat all of them in their own fields sometimes crushed their confidence.