75 A right proportion among wages and salaries also contributes directly to the same result; and with this is closely connected a right proportion in the prices at which the goods are sold that are produced by the various occupations, such as agriculture, manufacturing, and others. If all these relations are properly maintained, the various occupations will combine and coalesce into, as it were, a single body and like members of the body mutually aid and complete one another. For then only will the social economy be rightly established and attain its purposes when all and each are supplied with all the goods that the wealth and resources of nature, technical achievement, and the social organization of economic life can furnish. And these goods ought indeed to be enough both to meet the demands of necessity and decent comfort and to advance people to that happier and fuller condition of life which, when it is wisely cared for, is not only no hindrance to virtue but helps it greatly.
Source: Quadragesimo Anno (Vatican.va)