What would it prove if I've done fuck all good, anyway? I'm just one person.
The analogy which I find is true is that sometimes trying help is like being in the middle of the ocean in a rowboat trying to empty the sea with a tea spoon. It's never ending and it feels like you haven't accomplished anything.
I don't want you to talk about your "good deeds", but I'd like to know what you have done. YOU are the one who brought this topic up, not I.
What I've found is it seems that people who bring this argument on the table (about having to believe in a God of some sort to actually go out and do good in this world) is that those same people who bring the topic up don't really do much other than their immediate surroundings which don't require a lot of time nor effort. Heck, I was a hard drinking SOB womanizer when I helped that one old lady shoveling her sidewalk in the snow when I jumped out of my work truck (during my working hours) to help her. I can assure you, even though I did a good deed, I wasn't a good person
I can honestly say that the majority, if not all the medical groups I know of that go overseas to help those in need usually have some sort of faith (this comment excludes paid professionals). All those who I have personally worked with who donate their time have some kind of faith as well.
Funny enough, the neurosurgeon who I had mentioned in the past who had a faith told my wife that if her HMO doesn't cover the complete cost of her surgery, not to worry about it, that his office would take care of the difference. Most neurosurgeons that I have met are pretty much higher than tho (sp?) pricks because they're so smart and have the bedside manners of a prick as well. From my own experience, not this man. Was it because he had faith or just because he was a nice man? I don't know.
I realize we could argue what is more effective, working hard and sending a check for a couple of grand for a cause, or donating your time. Personally, I've found it to be both. That said, I don't think I can ever recall telling someone that they have to accept God to accept my help.