The question I have about these 100x (or 10x) productive programmers is why they wouldn't jump ship on employment and sell their 100x productivity on a project basis? Presumably they would make multiples of their salary if they are really multiply productive.
Some of us did. As a contractor, you certainly can earn a significant multiple of the hourly rate you would make as an employee in most companies. If you set up your own business and build your own stuff, then you have almost astronomical potential: the software development business has low barriers to entry, and the right idea can scale from a small team to serving thousands or millions of customers.
However, it's not as simple as that: you absolutely must have a broader set of skills to work effectively in these ways. There are many management and communication skills that you wouldn't need much working in a technical role as an employee that are quite simply essential to working independently, and more still if it's not just your own work to be organised but a whole team/company. Also, you are operating without the safety net that being an employee provides: you typically bear all of the risk if you're on a high-margin fixed-price contract that overruns by a year, or if you put your own money into starting a company and your idea just doesn't work out.
A lot of us including myself just don't have what it takes to work on a multi-client consulting basis. Plus at least back before the net became really big Gerald Wienberg said that the correct hourly basis to set is 5-6 times what you want to earn because of all the overhead and downtime that comes with this business model. That's still a factor if you're charging on a project basis, which is extraordinarily dangerous in our field due to the inability of our customers and ourselves to correctly scope a project before it starts.
