There is another force in play: the degree to which support makes the individual more powerful. I am much closer to my full potential as a problem solver when surrounded by effective management/facilities/IT/legal/differently-specialized-peers/enough-people-to-work-on-truly-large-systems than when I go it alone. Having spent significant time both as a freelancer and in mind bogglingly huge corporations, the corp lifestyle has its drawbacks for sure -- but I myself find the benefits of support and large problems to dramatically outweigh the drawbacks of politics and lack of freedom. Your mileage may vary, of course. Shoot, my mileage has varied over the course of a career. Still, the intuition seems solid: you aren't going to be solving Google-datacenter or Amazon-logistics levels of problems with your personal startup calendar app. At least, not usually, not for a while.
If there is a minimum size market which can maximize the impact of a good developer, I suspect there might be a minimum size company, too.
Small teams with a big support behind are optimal (I think)
Two guys in a garage sounds exciting but in reality it's kinda inefficient (less so with all the SaaS stuff today, but still)
When dealing with a mature process the support team is fleshed out and specialized; high performers have been filtered through the events of previous market cycles, and are now optimized into upholding a political role within the org. To a nominal degree everything the mature org does matters more because it's bigger in every respect, but the opportunities presented to ICs deal increasingly with maintaining infrastructure already being used, rather than leveraging infrastructure towards a novel experiment. Someone has to do both, of course, or else you don't get advancements. But you are going to feel more powerful within the big org, and you usually get compensated better.
For the last decade contracting/freelancing has been paying consistently the salary in the upper ranges discussed in the above article, from my experience living in the NL.
Taking a regular job, unless for big companies like booking etc. described in this articles, for most devs here would mean taking a pay cut up to 50% if not more compared to contracting.
So yeah even if you want to get a steady job with tax cuts you get being a freelancer you can work half a year in the NL and in the end easily make more then a full year being employed.
So in the end most of us have our own little lemon stands, because it just makes more sense.
While polymath geniuses that excel in many different areas definitely do exist, they're a lot more rare than those who merely excel in one or two areas.
Once you have a business with that problem, then developers are worth significant money.
First of all, risk adjusted reward/liquidity almost always favors just doing really, really well as an engineer -> engineering leader at a FAANG or a tier or two down. You'd have to really knock it out of the park with a company you start for it to be financially better for you than simply building and riding out a great career at a FAANG.
Second, many parts about starting and running a company run in different directions or even directly counter to the kind of fulfillment you can achieve by being a good engineer at a strong engineering organization. This is probably the much more important point. If running a company well is something that truly makes you happy -- happier than all the other things you could be doing, and you can stomach the intense resource investment it takes to become successful, then it's worth it.
But that's rarely the case. If you ask a lot of people who run companies who are more on the honest/humble side of things why they run companies, they'll tell you the same thing: "I'm not very successful at working for other people." That's not just them being humble. There's a lot of truth to that. And the other side of that truth, is that for people who are a little better at doing that, there's an enormous amount of very well compensated and highly intellectually stimulating work that can be done in the world of big tech.
For most if not all of the best engineers I know, they have great deals at great companies being well compensated ICs and player-coaches. Why start your own company when you could just walk in making a guaranteed low to mid 7 figures TC with the same level of autonomy at a sure thing?