Culture. America is extremely materialistic, individualistic, competititve and success-oriented. Whereas in many other countries, many people shrug at the thoug

Culture. America is extremely materialistic, individualistic, competititve and success-oriented. Whereas in many other countries, many people shrug at the thought of becoming a billionaire ("what do I need all this money for?"), in America, the default reaction is "THAT'S AMAZING". This makes Americans take way more risks with entrepreneurship, as, for them, they are chasing the ultimate dream. It may be bad for them on individual level (as most of them fail, sometimes with serious consequences to their lives), but the US society as a whole benefits, because of the value created by the successful minority.