Well, there are anecdotes contrary to this proposition. For example Google's cofounder Sergey Brin [0] comes from an immigrant family of modest means, upper mid

Well, there are anecdotes contrary to this proposition. For example Google's cofounder Sergey Brin [0] comes from an immigrant family of modest means, upper middle class perhaps but not rich. [0] https://en.wikipedia.org/wiki/Sergey_Brin https://en.wikipedia.org/wiki/Sergey_Brin