During the greater part of the nineteenth century the significance of the opposition between the two principles of individual rights and social functions was masked by the doctrine of the inevitable harmony between private interests and public good. Competition, it was argued, was an effective substitute for honesty. Today … few now would profess adherence to the compound of economic optimism and moral bankruptcy which led a nineteenth century economist to say: “Greed is held in check by greed, and the desire for gain sets limits to itself.”

R. H. Tawney (1880-1962) English writer, economist, historian, social critic [Richard Henry Tawney]
The Acquisitive Century, ch. 3 “The Acquisitive Society” (1920)
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