I get your point, but I think, you don't get mine.
What if a player wants to play him differently? Not like a proud noble warrior but like a rogue? Because of the way he got treated, the Red Prince went into the shadows and turned his back on the royals for example. I don't think an elitist jerkass style of answer would fit this aim.
If you first meet him, he is even pretty suicidal.
It's up to the player to decide, how they want to play the stories out and the character of the 6 origins. I guess, this is probably the same reason, why there are sometimes two alternate possible Red Prince answers by side of the 'neutral' ones to chose. You can't change his tags, but his class and rogue won't act the same way as a mage or warrior even using the 'neutral' answers in my opinion.