The way I see it is that academia and self-entrepreneurship are much alike. Comparing working in academia and for a company is apples to oranges, as working for a company is literally about working in company, i.e., not by yourself.
It's also easy to see the distinction between different phases in academia: after PhD it's much more about what could be done against what can be done. It's more like trying to get VC money with just an idea. It's hard, but some can do it, but it requires a vastly different playbook than what is required to get the degree. If you already know how to make things work, it's easier to transition into a bootstrapped mode where you can sideline as an independent researcher without all the fluff of publishing.
It's also easy to see the distinction between different phases in academia: after PhD it's much more about what could be done against what can be done. It's more like trying to get VC money with just an idea. It's hard, but some can do it, but it requires a vastly different playbook than what is required to get the degree. If you already know how to make things work, it's easier to transition into a bootstrapped mode where you can sideline as an independent researcher without all the fluff of publishing.