They do. It's called "incorporating a company" or "investing in the stock market" often with leverage.
I would guess that for a regular non-connected, non-ivy league folk the chance of becoming a billionaire is roughly the same creating a startup vs. the lottery.
At that point it makes sense to play the lottery if you are a "swing for the fences" kind of guy, that's because when odds are kinda the same it makes way more sense to throw 500$ monthly in lottery tickets than throwing 14h/6d/52w yearly in precious time to build a company or reading balance sheets of publicly traded companies
We were discussing the lottery.
it doesn't matter when rich people play the lottery, whereas it does matter when poor people play the lottery as its a meaningful proportion of their available earnings