If anything this is due to social media amplifying and glamorizing people that loudly demonstrate how fit, rich, happy or whatever they are so they can sell their method of getting fit, rich, happy, etc.
The USA has always been an individualistic society compared to most, the entire point of capitalism is to leverage individuals greed. That spurs them to create more value for society than leveraging their sense of duty.
The problem we have right now is that the governmental agencies that are supposed to curb bad actors are not performing well. The FCC should have ended robo spam calls years ago.