Where, Bredon asked himself, did the money come from that was to be spent so variously and so lavishly? If this hell's-dance of spending and saving were to stop for a moment, what would happen? If all the advertising in the world were to shut down tomorrow, would people still go on buying more soap, eating more apples, giving their children more vitamins, roughage, milk, olive oil, scooters and laxatives, learning more languages by gramophone, hearing more virtuosos by radio, re-decorating their houses, refreshing themselves with more non-alcoholic thirst-quenchers, cooking more new, appetizing dishes, affording themselves that little extra touch which means so much? Or would the whole desperate whirligig slow down, and the exhausted public relapse upon plain grub and elbow-grease? He did not know. Like all rich men, he had never before paid any attention to advertisements. He had never realized the enormous commercial importance of the comparatively poor. Not on the wealthy, who buy only what they want when they want it, was the vast superstructure of industry founded and built up, but on those who, aching for a luxury beyond their reach and for a leisure forever denied them, could be bullied or wheedled into spending their few hardly won shillings on whatever might give them, if only for a moment, a leisured and luxurious illusion.
Dorothy L. Sayers, Murder Must Advertise (1933)