Covid Vaccine Will Require Billions of Vials, This Billionaire Family Makes Them
forbes.com
forbes.com
I'm sure there are thousands of others whose defining unfair advantage also stems from creating a unique money-making machine of some kind, in particular making a tangible product, even if that does still add up to very few billionaires today.
Seems to me the more efficient the money-making machine, the easier it would be to do well without having to grow to billionaire scale anyway.