Past few events have come up to me and asked me this question. I dont mean to be emotional or sentimental about it - but I really can't escape from answering it.
All along, you fight for your people's rights, defend them from outside attacks, go out of your way to shield them from direct criticism, think about their everything - including the future, try to minimize their problems, basically work hard to get their things right. I can go on and on.
Subconsciously, you expect some kind of a return. And when you don't see even a bit of it - believe me, it hurts. And that's when this question keeps nagging you - the natural answer is a straight no. But things are not straight. Life is not straight.
I guess the best part is that this feeling makes it easier if you've to get out of the place.