Another consideration is that maybe having sole control of a massive pot of cash or financial instruments by an individual is just a Bad Thing. Consider how Zuckerberg structured FB so that while he it's a public company, the bulk of the stock is non-voting so he has de facto sole control of the firm. No matter how destructive of shareholder value or public goods his executive decisions, it's virtually impossible for anyone else to overturn them barring some novel legal line of attack.
I have no particular feelings about Tim Sweeney/Epic, but would the economy or the gaming world be worse off if he no longer had founder control? If he's great at his job I presume shareholders would want to keep him on as CEO and would compensate him handsomely in cash money.