The only way I know that you can get rich is to be helping people and win their trust and confidence, they can entrust you with anything, just name it political power, economy power even their life 
With that kind of thinking I think you wouldn't go so far at all. You're already expecting something in return by helping them, not by your conscience. The one fueling your motivation is the benefit that you would get something on the latter.
You also need the same status, power, or standing to be recognized by these people. Simply saying the benefits with each other.