The Drive For Altruism Is Hardwired
Dekortage writes "The Washington Post is reporting on recent neuroscience research indicating that the brain is pre-wired to enjoy altruism — placing the interests of others ahead of one's own. In studies, '[G]enerosity activated a primitive part of the brain that usually lights up in response to food or sex... Altruism, the experiment suggested, was not a superior moral faculty that suppresses basic selfish urges but rather was basic to the brain, hard-wired and pleasurable.' Such research 'has opened up a new window on what it means to be good,' although many philosophers over recorded history have suggested similar things."
I have heard this statistic many times and tend to believe it, within reason. The import thing to remember about it is that this also includes contributions to some organizations that you are a member of, most importantly your church. My bet is that if you look at donations to your own church as something other than "charity", then this statistic may swing the other way.
Another way of looking at this might be that "Religious Conservatives" spend a lot more money (primarily) improving the well-being of those they consider to be part of their own group, while "Secular Liberals" contribute a smaller amount to people outside of their own group. Both seem like perfectly natural responses.
Also remember that many religions have the concept of a semi-inforced tithe, and many European countries have gone so far as to make this a part of tax law. That sort of thing is going to skew the statics to almost meaninglessness.