135 With the rulers of economic life abandoning the right road, it was easy for the rank and file of workers everywhere to rush headlong also into the same chasm; and all the more so, because very many managements treated their workers like mere tools, with no concern at all for their souls, without indeed even the least thought of spiritual things. Truly the mind shudders at the thought of the grave dangers to which the morals of workers (particularly younger workers) and the modesty of girls and women are exposed in modern factories; when we recall how often the present economic scheme, and particularly the shameful housing conditions, create obstacles to the family bond and normal family life; when we remember how many obstacles are put in the way of the proper observance of Sundays and Holy Days; and when we reflect upon the universal weakening of that truly Christian sense through which even rude and unlettered men were wont to value higher things, and upon its substitution by the single preoccupation of getting in any way whatsoever one's daily bread. And thus bodily labor, which Divine Providence decreed to be performed, even after original sin, for the good at once of man's body and soul, is being everywhere changed into an instrument of perversion; for dead matter comes forth from the factory ennobled, while men there are corrupted and degraded.
Source: Quadragesimo Anno (Vatican.va)