It's absolutely not western nor is it puritanical. The value is clear, there is a wide funnel like no other from starting drugs to ending up on the street, etc. Other societies, asian, middle eastern, etc found their way to the exact same values, sometimes enforced much harsher by the state.

This libertarian stance where neither you nor the state should care about how your neighbors lead their lives is the exception, not the norm, and it has its merits, but the cost of this ideology is obvious.