First, define "huge amount of money" because obviously Nordic countries have some alternative definition of it :) How many self made billionaires are in Sweden?

Second, the way of becoming rich country haven't changed for the last few millenniums: you have to exploit cheap labor from a large number of slaves (sorry, now we call them immigrants) Therefore becoming rich strongly depends on being born in right race and social class.

Lastly, it's amusing how so many social issues get blamed on capitalism and free markets when both of those things are pretty much nonexistent in most countries - even US have some heavy regulation in place.