It would be straight forward to require companies over a certain size to issue and distribute some number of shares based on current pay to employees. Existing shareholders will have their stake diluted but are welcome to buy more shares on the market while employees are welcome to sell or hold. If the investors are actually good at allocating capital, they should have plenty of profits from previous investments to maintain their % ownership despite the share inflation. If they aren't, then they should find a different job.
Under this scheme, Bezos would still have become a billionaire, and we know this because Amazon and tech companies already do this exact thing by offering stock options!
And the neat thing is, when a company does a stock-buyback, this is literally the same giving a dividend of the profits to employees.