Introspection

So, recently I have been in a situation where I had to make a decision... A tricky one, and I made the "right" choice, which, as it turns out, wasn't the right choice... But for a change I had to do something right... Here is my question; why is it that doing the right thing always, and I mean always, comes back to bite me in the ass... I have had multiple theories about it over the years, but honestly, I think it's simply the fact that no matter how nice a guy you are, at the end of the day, you're the only one... The more you sacrifice of yourself, the more other people benefit, never you... So I'm interrested in your theories, let me know...