Wealth isn’t fungible like that. A lot of recent wealth inequality was stocks rising.
That doesn’t mean that food production went up, or that more houses get built cheaper, or that new doctors are cloned, or anything of the sort.
It just means stocks went up.
Most of the economy is people providing stuff to other people, or working to import stuff. If people don’t work, you don’t get the stuff they provide.
To a certain extent you can sell off assets abroad and import stuff using a trade deficit. But that doesn’t work forever, and you can’t import haircuts or clean floors or construction labour or nurse shifts. At a certain point work is needed.