Either they have the skills to be a founder themselves or to work at BigTech... or they are financially ignorant/disinterested enough to not understand how equity in corporations work? Or is the charming and misleading founder who is to blame?
My point is that considering the high avg intelligence of the typical startup employee, there must be something else going on.
Clearly, people like working at smaller companies that have potential to grow - maybe that's because there's more interesting work, less bureaucracy, smaller teams, more of a sense of a journey, etc. Easy to devalue these things, but what else explains the fact that even when there's more risk and likely poorer financial outcomes these otherwise very intelligent people still choose to work at these companies?