Treating your question as non-rhetorical, you get to play with the money if you work at a bank (most bank have a standard career webpage where you can sign up).

Treating your question as non-rhetorical, you get to play with the money if you work at a bank (most bank have a standard career webpage where you can sign up). But most normal employees don't profit all that much unless they make it to upper management. As for the shareholders whose money get leveraged, most large banks are public and you're free to buy stocks. If you money in index funds or other diversified stock funds, you likely already have invested substantial amounts.