Rick Warren's greatest desire is to become a celebrity, he's doing well at it. He wants access to the beautiful people, fawning press attention, etc.
He has found another man as shallow as himself in Barack Obama. They justify each other, even though deep down, both of them know they are frauds.
They look at each other and say "you complete me".
YOu hit the nail on the head.
Narcissism + ego = Rick Warren
He hit a home run with that book of his, but now what does he do to get back in the spotlight again?
He has chosen two routes: Attach himself to politicians and attach himself to global aids. With Obama, he is killing two birds with one stone.