This comment just shows the power of the survivor bias. Face it; you're a survivor and your friends are survivors too; you're all biased. Maybe you know wealthy investors, maybe you live in the US - You cannot take this for granted; very few people have these things.

I have met several very smart people who have done great things but have not been fortunate enough to succeed financially because (for example) some well-funded, well-connected silicon valley competitor came out of nowhere and took all the market share through the sheer force of advertising. Many things can go wrong.