Sure, which means that they were greatly affected by the war. Thus, according to you, they should not have been able to create a successful welfare state.
Sooner or later you run out of other people's money, and then you have to create more incentives for people to work, to take advantage of your own strong people to create the value, and that comes with more "inequality", and requires you to compromise on the welfare.
I'm convinced that a country that cannot attract hard working highly educated people will struggle to be successful in the global economy, and the way forward is to educate people to become more self sufficient and independent, and not to continue with patronising welfare politics that were made for a post war booming economy.