You're taking the topic so literally that it's disingenuous. For some reason you're acting as if PG's advice doesn't apply to achieving success short of $1B, or as if anything short of $1B is unsuccessful, and we both know neither conclusion is true. So I'm confused what point you're trying to make, exactly.
There are less than ~5K billionaries in the entire world. Not quite like winning the lottery sure, but still unrealistic for the majority of people.