There is a reason why Jesus is the standard for Christians and that Christians are not the standard.
<<Sigh!!!>> It seems there is a sex tape, that kind of tape of Carrie Prejean going around. (please say it ain't so!) I am so sorry to hear this. I don't know the girl, I never saw the pageant. But, I do know that when some folk find Christians who have stumbled it makes them happy. And for why?
"Well, if Christians act this way, then what is the benefit of being a Christian?" Very fair question. All I can say is the church isn't for perfect people but people who are trying to be perfect. Jesus said that he came for those who were sick, not those who don't need a doctor.
Folk also want to rationalize their own shortcomings.
"Look Christians do this sort of thing."
Not much sense in that kind of reasoning.
Indeed I hope it's not true about Prejean or anybody else for that matter. I will give her the benefit of the doubt. Innocent until proven guilty. And if she is guilty, no love lost, just hoping she repents and makes the effort with the help of God to turn her life around.