Reciprocity is great when all parties contribute equal amounts, all parties receive an equal share of the benefit, and the arrangement is strictly voluntary. Think toll roads where everyone pays the same price, only the people using the road pay for it, and everyone using it benefits from it.

It's less great when some parties are expected to give more than they receive in return (in order to provide for those who give less than they receive in return), without their consent, enforced by the state's monopoly on lawful violence, and are demonized for so little as daring to express dissatisfaction with the involuntary arrangement.