It's not clear if this is meant to be a serious thought experiment, but nonetheless I would ask why you equate expenses ($6.8T) with revenue ($4.9T)? I suppose it might not make a big difference, but it's a strange decision (within an already very weird thought experiment.) Also not sure why you picked top 10% wealth, since the previous comment was about billionaires. The top 10% of net worth starts with low millionaires so... goodbye every single employer, I assume.