Because your filter of "top startups" likely already is filtering out all the bootstrapped success stories because "they are not startups". It is rejecting anyt

Because your filter of "top startups" likely already is filtering out all the bootstrapped success stories because "they are not startups". It is rejecting anything that succeeded via slow deliberate growth because they are not the "top", nor are they from the last couple of years. Your chosen filter shows you the people playing the VC game, and yes that game is mostly played by the same crowd who chooses the Ivy League.