One reason to tax the richest of the rich is to put a damper on their political power. The Green New Deal calls for a 70% marginal rate on every dollar earned over $10 MILLION. The fact that we has people in the country, one tenth of one percent making $10 million or more is obscene when you look at the problems we face as a country. BTW…entry level to the one tenth of one percent is income of $10 million a year and about $100 million in assets. Rarely is that level of wealth accomplished by hard work. More likely it’s passed down.