There would be far less money hoarded, which means more in circulation and a more robust economy. And if the "second line in command" starts hoarding, they can go in the shark tank too.
I think you're nuts. Killing the rich isn't going to make your life better because someone will always replace them. You will never see a cent of wealth that way unless you remove a lot more than just "the rich".
The issue isn't that rich people exist they are hoarding and I've seen him out of wealth, causing Millennials and gen Z to have a lower quality of life than their parents