In a consumer society there are inevitably two kinds of slaves: the prisoners of addiction and the prisoners of envy.

An increasing number of people are growing uncomfortable with the gulf between the world’s rich and the poor. Ostentatiously splashing your money around simply draws attention to that disparity, and to your own position on the lucky higher ground. It suggests a callousness, an inhumanity, a let’s-just-rub-their-noses-in-it arrogance.