It's bullshit. It has nothing to do with doing good. As soon as someone explains it in a negative way you're no longer "doing good".
Discussion
hey
you are right AND wrong
1. You are right
lion hubgry lion eat you. Lion not hungry lion not eat you. There is no equality in nature. Just because you do sonethibg good it does not mean someone will do it back to you.
2. You are wrong
Everything you do matters. Everything matters. Based on what you do, even the things nobody knows about, will atract different people. So in the long run people around you and experiences you have depends on your actions.