I don't have any problem singing hymns even though I'm a vehament Athiest.
I play Pipes at a lot of funerals and some times I stop in through the service, and not to stand up and sing in the hymns would be disrespectfull.

"I've known atheists who would do practically anything for money"

Whareas the new age cristal waving, crop circling mudcat Sanyasi do everything for higher reasons and would not soil there hands with the petty trinkets of Maya.

TTFN
PP