There are many who say in effect that public opinion has little to do with war, that it is explained by the influence of the vested interests who profit by it — armament makers or groups of capitalists. But even when we have admitted that those interests do exert great influence, it only pushes the question further back. Why are the mass of men, millions, powerless in this matter as against a tiny minority, a few dozen or a few score or a few hundred who profit by the general disaster? There are undoubtedly some who say to the millions in effect: "We should like you to go to war because it would expand our profits." But why do the millions obey?

Peace and the Public Mind (1935)