We have relationships with other individuals, but we also have relationships with groups as a whole. And the way we tend to those relationships depends on how we believe the other party tends to us.
If you have a relationship with someone who treats you with trust, kindness, conscientiousness, and care, you will naturally reciprocate and feel good about doing so. But if the partner is thoughtless, callous, or cruel, only a fool would put effort into that relationship.
So it is with our relationships with all of the various organizations that make up society. If the company I work for is giving me the fewest possible benefits and is happy to fire me if they get the chance, why should I do anything but the bare minimum? If my government is being used as a tool for enrichment by cronies and oligarchs, why shouldn't I do everything I can to skirt paying taxes? If the giant store chain I buy my groceries from keeps jacking up prices and shrinkflating products, why shouldn't I slip a few extra apples in the bag without paying?