140 While it is true that farm produce is mainly intended for the satisfaction of man's primary needs, and the price should therefore be within the means of all consumers, this cannot be used as an argument for keeping a section of the population—farm workers—in a permanent state of economic and social inferiority, depriving them of the wherewithal for a decent standard of living. This would be diametrically opposed to the common good.
Source: Mater et Magistra (Vatican.va)