All you really have to be is needed.
As you and my fellow hiver said, yup it's the principle of my life too. :)
I believe u serve people and then serve better and then better and one day people will appreciate your services. :)
We talked about this few times in past too.
I don't know, man, many of the people I gave help to didn't return the favor in kind.
Those that need help, but resent that facet of themselves, will often hate that they had to be helped and since they can't hate themselves, they hate you for being in a position to help them that they are incapable of reaching.
People are strange.