I have a feeling about doing a very small thing for someone, and if you look at it as deserving then they have not earned anything really. However it is not about them, I find when I follow through on these intuitions it is a good thing. I almost never find out what happened or if there was any impact later, but I go forward as if it may have. In some ways maybe it is selfish, well I think it would be if I got attached to being a good person or finding out I made some awesome difference. But letting it go just means it is one thing you do and move on.
In thinking about this I think it can be a way of clearing the air and releasing from someone who does not deserve a kind gesture, restoring the balance in myself in fact.