A pure heart doesn't care if it is exploited... A pure heart sees God.
A pure (so-called) heart would necessarily care about any/all exploitation. They may allow it to happen to themselves, but this is not necessarily a virtue: it may be needed/required to KNOW good/evil via knowing any/all circumstances exploitation occurs (incl. to/of themselves), thus discerning evil motive/intent/will. However simply ENDURING it for the sake of a belief-based god ad infinitum is... insanity.
It is the same problem(-in-and-of-itself) as belief-in-and-of-itself being required to believe evil is good.
It takes a believer to believe enduring exploitation is a /noble/virtuous act.
Now look at the believers: believing exploitation is not something to be cared about. What inversion!