What is your point exactly?
Two eras portraying pornography is about as much as you can say is similar between then and now.
For more on the kinds of films Denmark was producing, have a read of this article [1] by Jack Stevenson who used to hold little events of porno history at a local art theater here in Copenhagen.
[1] https://brightlightsfilm.com/porno-to-the-people-the-danish-...
"High wealth equality such as the Nordics"? https://upload.wikimedia.org/wikipedia/commons/3/39/Gini_Coe...