Quick an simple, if you are famous/privelaged, act your fame. Why are NBA players sitting on the bench during a game that are getting paid 6-figures to play per game, tweeting to their followers? Why get married if your vows aren't worth the mouth that is speaking them?
I need for the famous/privelaged to say that they are better than others, and prove it. Yes, I said it. If someone is making 25 million a year to hit a ball, this person shouldn't be dropping the ball in unacceptable ways.
I know, nobody's perfect, but that doesn't mean that you shouldn't have morals and a wealth of professionalism. Role Model or not, you are still in the public eye and you still inspire people to aspire. Just clean up your act.