These are not valid arguments. The companies that get added to the S&P are always owned in some fraction by rich people.
SpaceX is obviously majorly owned by Elon, but it’s also owned by regular employees, a bunch of private investors and other funds that regular people invest in.
> They're not profitable.
Right
> When they prove they're worth the dollars,
Profitable isn’t related to “worth the dollars”. You need to look at income and how much is being reinvested into growth. Amazon famously remained unprofitable due to reinvestment and waiting for them to become profitable before investing was a bad bet.