Clearly there is no place in CST for the capitalist ideology. But at the same time we must be careful to avoid that even greater error, which arose as a false cure for the capitalist disease, a cure that was worse than the disease itself, called socialism:
“To remedy these wrongs the socialists, working on the poor man’s envy of the rich, are striving to do away with private property, and contend that individual possessions should become the common property of all, to be administered by the State or by municipal bodies. They hold that by thus transferring property from private individuals to the community, the present mischievous state of things will be set to rights, inasmuch as each citizen will then get his fair share of whatever there is to enjoy. But their contentions are so clearly powerless to end the controversy that were they carried into effect the working man himself would be among the first to suffer. They are, moreover, emphatically unjust, for they would rob the lawful possessor, distort the functions of the State, and create utter confusion in the community”
These words come from Leo XIII who would later be praised by Pius XI for his rejection of both liberalism (capitalism) and socialism: “He sought no help from either Liberalism or Socialism, for the one had proved that it was utterly unable to solve the social problem aright, and the other, proposing a remedy far worse than the evil itself, would have plunged human society into great dangers.” “…let all remember that Liberalism is the father of this Socialism that is pervading morality and culture and that Bolshevism will be its heir.” Liberalism as used within this context, and as we always find it within CST, refers directly to the ideological tenets of capitalism, which is simply another name for economic liberalism.
 RN, 4.
 QA, 10.
 QA, 122.