The world is about making use of each other?

I really appreciate those people who could give their all to help those in need. I have a friend who gave up her office job to become a special needs teacher. Her salary was halved, and she had to attend lessons all over again to become a qualified teacher. And in her free time, she would be out there volunteering for some other charity. She's simply 1 amazing lady.

And yet there is another friend, who is getting 2K a month, getting quarterly bonuses of about 1K, and complaining she earns too little. She says she don't want her parents to suffer(?), suffering when her father is earning over 5K a month, living in a big house, and having enough excess cash to buy her a car?

See the BIG difference in thinking? The returns? One gaining spiritual happiness, while the other going for monetary "perceived-happiness". Which one is better? I know which, how about you?

I just can't get it, or is it simply some people can't get it? I help my friends(more girls than guys since that is the proportion of my friends) and some people says I'm being fooled by them. It is as if I am that stupid to not recognise what I am doing, and what I am expecting in return(nothing that is). So helping a friend without expecting any returns is making a fool of yourself? Then what are friends for?

So am I the fool, or the person who says I am is the fool?

"The world is about making use of each other, it's just a matter of how much you expect in return."