As a fellow business owner I would say if you are in business to make money you should stay away from anything that is going to bring unwanted attention. Period.
also something to think about... the 2 fast food chains that display their religious beliefs and contributions, etc both have lines around the block.
chik-fil-a and in-n-out. hell in-n-out has a bible verse printed on the underside of its cups. are you going to lose business over it? they dont. does it cause them problems? sure.