Mater et Magistra §147

¹⁴⁷ In using their various organizations, agricultural workers—as indeed all other classes of workers—must always be guided by moral principles and respect for the civil law. They must try to reconcile their rights and interests with those of other classes of workers, and even subordinate the one to the other if the common good demands it. If they show themselves alive to the common good and contribute to its realizations, they can legitimately demand that their efforts for the improvement of agricultural conditions be seconded and complemented by public authority.