Losing Their Faith-from Billy

I was reading this article  about 2 ministers that have abandoned Christianity and became Athiests, but still perform their church duties.  My question is: if you don't believe in God anymore, why be the spiritual advisor and minister to people who do believe?  It's a good thing that these guys didn't want their identities to be shown, or else they would be in big trouble!  The idea of an Athiest being a minister is like a Republican being given a leadership role in the Democratic party.