The current American system is premised on people buying into this. If people don't there is no societal foundation which probably leads to societal change. It's like the one societal contract we have (had). Not society helps you, not society puts a roof on your head. Not we're in a society together, so when you get sick we help out. Purely just 'if you work hard, you will be rewarded, and the rewards will take care of the things our social model doesn't'.
To show that this isn't exclusive to USA - I heard that in Japan nowadays workers can't rely on their megacorp to provide them predictable work position and can be fired regardless of their tenure. This is all after being told for decades that megacorp is literally their family and they should dedicate their whole time to it.