Well, that was more of a general statement to explain why people act as they do; personally, I generally help people if they're of some sort of particular interest to me, or if I believe they have potential to become that way in the future. I don't waste my time on complete charity, but you've presented me with a good amount to think about in the past, and you've actually explained something to me before in a way that made more sense than anything that humans say about the same topic.

Consider it to be in return for that explanation, if nothing else.