I don't know anybody that you know who became rich, and so that whole second paragraph sails right past me. Especially when it concludes with a suggestion that hacker VPs are as rare as movie stars.
As for the partner track at law firms, uh, fine. Substitute MBA -> investment banker, or CPA -> CFO, or Med School -> Anesthesiologist, or any number of other careers that don't have partner tracks.
Even if your salary never breaks $110k as a dev, you're still fantastically lucky to get that in any career, and perfectly capable of becoming a millionaire. So, I guess, cry me a river about how hard it is for techs to succeed without starting entirely new businesses?
Finally, let me just leave you with an uncomfortable truth: it is a safe bet that you will never get rich starting a company, or any number of companies.
I freely concede I could be wrong with respect to directors and partners. I work at a software company and my girlfriend works at a law firm.
I absolutely agree with you that the odds of getting rich by starting a company are low, all I'm saying they're better than the odds of getting rich by other means.