There are millions of people in the US alone that would jump at the chance of taking a good startup job or creating a startup themselves. They don't need convincing. But startups don't want to hire them and investors don't want to fund them. Because they're poor, under-educated, and different. They also make up the majority of the smart and talented people.
It would require actual effort and understanding to work with those kinds of people. A lot more work upfront. Some of them haven't even read Homer, the plebs.
Instead, wealthy investors ignore those millions and spend their time trying to convince a handful of wealthy entitled children to temporarily forgo the easy life at Google or Accenture.