I don't see Palin acting aggressively to display moral authority.
True moral authority is earned. Through taking principled stances and working to better improve conditions Palin seems to be doing so as more and more people tune into and trust what she has to say.
I'm trying not to come across as “judgmental”, but simply trying state that “taking a principled stand” does not equate to “moral superiority”.
On a final note, I'd like to personally state that I will NEVER trust ANYTHING that ANY politician says without doing my own research and forming my own opinion independently of any statement or belief that ANY politician holds.