It's just what I do. There is no other reason I do it other than it makes me feel better about myself.
Okay, if you still have the patience. I'd like to stop on this for a moment. Now, I too get this feeling (bet a lot of people get). But then, why do we get it? Is it even important?
And then, it makes us feel good. Which means we are doing it for selfish reasons. Does this make it less good? Does it even matter, is it just the act that matters not the intent? (intent being that we get a reward, good feeling out of it)
However, it seems to be the case that people encourage other people to feel good about being selfless, and that the good feelings that one feels when one does the "right thing" is itself considered a virtue. So, I guess someone who behaves "selflessly" is really being selfish since she is actually striving for a "good feeling". On the other hand, other people think it is admirable that she does feel good when she is being selfless.
Hahha, this is probably the most confusing (yet good) way I've ever seen anyone put this :D Selfless? Selfish? Who knows. But yeah, I do get your point.