The important thing (not mentioned in the document) is how much he pays them. That determines whether "wanting them to get rich" is real or not.
Once I worked in a small software company, and the boss kept telling us "if the company grows, we will get more money, and we will all get rich". Young and naive, we worked hard. When the company grew, he... hired more developers. Well, of course. That is obviously much more profitable than increasing the salary of the existing developers. At the end, he was the only person who got rich. Why did we ever think it would end up differently? I guess, because we were young and naive, and also because he told us so.
Being older and more cynical, if you want me to get rich, pay me. (Or make me a partner in business.) Otherwise, five or ten years later, when the company gets big and I will probably be burned out, you will have no incentive to waste money on the burned out guy, when the alternative is to hire someone fresh.
> Why did we ever think it would end up differently?
Because it has worked, countless times. Microsoft, Google, Facebook etc were all small software companies once, the current hotness is NVIDIA (ok hardware, not software). Obviously it doesn't happen often, or to a high percentage of startups, but hey, he wasn't lying to you, you took the job knowing the deal.
