Depends on how you measure individual outcomes. Arguably, a life lived passionately is the best individual outcome, even if it doesn't result in you becoming rich. Maybe that's a privileged thing to say, and certainly if someone following their passions is staring down the barrel of poverty then they might want to rebalance in favor of their financial health, but in the absence of dire financial circumstances, passion is a good compass to follow. Certainly many people volunteer their time for causes they are passionate about, with no expectation of financial reward, and are happier for doing so.

What PG is noting is that sometimes (even if rarely), what an individual is passionate about can also be good for investors. But the passion comes first.