To be honest, what they do with their money is their own business, just as what you and I do with ours is no one elses concern but ours.
Hobbes was wrong, just as Plato was, it's just a pity so many still refuse to accept it.
What are the consequences of people like Green taking astronomical sums of money out of the economy?
What are the consequences of relying on the whim of rich people to provide our public services and welfare?