Also, New, all 3 studies were based on "momentary compassion". And I think that is why most people give for non-religious reasons. It takes a cold person to pass by a bum without throwing a few bucks to him or give a crying kid some food. I know when I give "on the spur of the moment", it is almost always entirely because of compassion, and has little to do with my faith.
But making giving as part of your life, having a chunk of your check taken out every pay-check to be sent off to charity, working at a soup kitchen every week, or going down to the poorest parts of the 3rd world on a regular basis to build housing, those are certainly compassionate acts, but are generally done for relgious reasons.
Compassion is a reactive feeling and activity.
Pro-activeness is generally done for religious reasons.
I don't see anything wrong with that. I think it just makes religion seem that much more worthwhile.