You must realize you are not the doer, that you are not the action.
Suffering follows the lack of wisdom.
It really doesn't matter to me whether a person has a lot of money or a little bit of money.
In Tantric Buddhism our feeling is that there is no problem with the sensual world unless you have a tremendous attraction or aversion to it.
The world is the way the world is because we think that it is so.
What you gain in internal knowledge goes from one lifetime to another. It is not wasted. Unlike those stone edifices that will fade, your internal knowledge will stay with you from one incarnation to another.