I recall a WaPo article about this last year*

Anecdotally, I know some developers who express disinterest in working for a company like Uber or Facebook. But it would be really difficult to gauge how many or the overall effect - except that over years, maybe, you would see their product suffer as they fail to attract and retain decent talent.

*https://www.washingtonpost.com/business/economy/the-big-prob...