Paarthunaax is such a deep character and a noble one, I felt insulted that they refuse to even talk to me because I won't kill him, basically circumventing my dragonborn gift as a tool only for their agenda. My say has no weight, they just want to use my power to slay dragons and nothing more.
The Gray Beards are right. They don't serve the dragonborn as they claim. Their ties to the empire is not a plus for me either.