Earlier quoted context omitted.
> someone else had to get it off the ground implying what? that "workers" can't start something? Even if we imagine there's a category of people that are suited to be "starters" or "entrepreneurs" that category is still plenty numerous, easily 10-35% of the population, if not more.
Yes that is the implication. Starting something requires raising money and organizing things. Generally, at the start, only a small number of people care to do this work. And once they do it, why would they give their ownership stake away to their employees when they could just keep it for themselves?
If there are distinct phases, and certain people or topologies are good at just one of those phases, then it follows that people starting restaurants must be bad at running them once they've established.