World War II revealed two of the enduring features of the Keynesian Revolution. One was the moral difference between spending for welfare and spending for war. During the Depression very modest outlays for the unemployed seemed socially debilitating, economically unsound. Now expenditures many times greater for weapons and soldiers were perfectly safe. It's a difference that still persists.
John Kenneth GalbraithConsumer wants can have bizarre, frivolous, or even immoral origins, and an admirable case can still be made for a society that seeks to satisfy them. But the case cannot stand if it is the process of satisfying wants that create the wants.
John Kenneth Galbraith