Because Bill Gates or Jeff Bezos don't buy a jet per $1B in wealth accumulated. They buy one each and don't buy another until the first one fails. Just because

Because Bill Gates or Jeff Bezos don't buy a jet per $1B in wealth accumulated. They buy one each and don't buy another until the first one fails. Just because you have more money, that doesn't mean you consume more stuff. For an economy based on money changing hands, what you propose would be devastating. We need to encourage spending.