Earlier quoted context omitted.
Also "the standard way to get rich"... It's much easier to get rich by getting hired at a FAANG than starting your own company. You only get rich by starting your own company if you win the startup lottery. Otherwise you're better off getting a high paid job.
There are very different definitions of "rich." Take the old comparison between Gates and Jordan. "If Jordan saves 100% of his income for the next 450 years, he'll still have less than Bill Gates has today." You can become wealthy and comfortable working for a salary. But, the canonical way to get "FU money" is to win the lottery.
Can a janitor save enough money to rival Gates? No. Not even close.
But the same janitor could save enough money to have "FU money" later in life, and only continue working as a janitor if he chose to do so.