Money influence politics in modern Scandinavian countries much less than in modern USA.
That's not my impression, but do you have some data? Perhaps if you include the former Soviet client states?
Though, even if you include the former soviet states, Latvia, Hungary, Poland, etc basically everyone except Ukraine is in the top third of the least corrupt, which is not that darn bad considering.
As for the Nordic states I haven't argued that they are not, I would say that they are potentially corrupt in other means as nepotism plays more than money but again it doesn't matter.
The US is still one of the least corrupt nations on the planet.
But of course, since communism lost, at least for now, it is an easy target for snarky comments.
Every institution was corrupt to the bone, if you wanted to send a package somewhere and for it to actually arrive at it's destination you had to bring 2 loafs of bread and a jar of home made pickles with you to the post office.
Communism like most dictatorships was more or less clean and organized on it's surface. One of the scariest things about authoritarian regimes is just how normal and calm they seem to many people that live under them. Heck martial law is quite commonly regarded by many to be quite "nice", all crime stops, the streets are clean, no one bothers anyone ofc if any trouble ensues all parties tend to be lined up against the wall and shot but other than that it's almost utopic.