That is a really crummy presumption. xNFPs more elegant than xNFJs? That's like saying INTJs are smarter than ENTJs.
I would agree with what you said, though. xNFPs definitely have a more fairy-tinker bell like aura, and I think Galadriel is an icon of xNFJs.
To stay on the Lord of the Rings note- xNFPs would be more like a Frodo or an Aragorn, stuck between the good and the bad, lost on the path, wandering into their own destiny with foggy glasses, following their hearts.
xNFJs have always seemed more wise. Like a Gandalf, Dumbeldore (WHATEVER HIS TYPE IS), or Galadriel. They all have an experienced, mystical, wise and philosophical aura about them.
It's hard to get across what I meant clearly, so I hope you're catching my drift.