The idea that a rich person is obliged to help the poor – not because it is a good thing, but because he is obliged – runs in public conscience as long as the society itself exists. For some mysterious reason people tend to believe that the rich are rich because they somehow robbed the poor. It may have been true – and only after a fashion – in the antiquity and the Middle Ages, when wealth has been considered as something static, that can be inherited or conquered, but not created and earned, when people whom we now call businessmen were considered to be maybe necessary, but still inferior members of the society, when production has been mainly based on slavery and serfdom. But why this idea is so popular now, when it is least true?