"The most noble person is the First Ancestor. Everyone is aware that there was a first human. Everyone reveres the first human. Thus, the First Ancestor is the most noble at all. No one can say they are noble unless they are descended from this First Ancestor."
"I get it, so everyone is noble and exalted just for being human, right?"
"Oh! That's not how I meant it," the alien said, "Your planet is the one with the reptile infiltrators, right? Maybe I've got them switched."