Also look at the top 50 businesses and how many still have founder control. In none of them does the founder still control 50% of the stock, and only a few of them (at least Facebook and Google) do the founder(s) control over 50% of the voting stock.
For example, Bezos only owns 16% of the voting stock of Amazon, Musk only owns 22% of the voting stock of Tesla yet neither are in any danger.