One thing I noticed watching the "Man of Marble" film, which has some scenes in 1950s Poland, is that hats and elegant(ish) suits are worn by the communist part

One thing I noticed watching the "Man of Marble" film, which has some scenes in 1950s Poland, is that hats and elegant(ish) suits are worn by the communist party members, secret police etc. Maybe it's just visual language of the film, which is from 1970s so it's aware of counterculture tropes. I'm not sure what lowly office workers and intelligentsia wore. But it might be that this type of dressing came to be associated with the class of oppressors.