@54f74c48 I read that the city of London tried to attract more wealthy people as a way to increase local prosperity but it didn't have that effect. It was realised  that rich people spend most of their money buying things from other rich people - mansions, yachts, diamonds, luxury cars etc. They don't  eat more bread or get more haircuts, or hang out at the corner pub, so they have no impact on the local economy.