32 “Whoever acknowledges me before others, I will also acknowledge before my Father in heaven. 33 But whoever disowns me before others, I will disown before my Father in heaven.
And there is a world of difference between a personal view of marriage - don't like gay marriage, don't get gay married! - and contributing money to an effort that would impose his personal view on everyone else. It's the difference between being personally against keeping guns at home, and supporting a law that would ban guns. Would a gun maker in Texas support a CEO who contributed money to a constitutional amendment to ban guns? Of course not. Would that gun maker support a CEO who made a personal decision to not own guns or keep them in his home? Why not, especially if that person didn't publicly advertise his personal choice.
“When buying and selling are controlled by legislation, the first things to be bought and sold are legislators.” - P. J. O’Rourke
“Socialism is great until you run out of someone elses money” Margaret Thatcher