What you say is true, but there's something missing, which is that a working-class person who was extremely fashionable by the standards of their own class would, if transplanted into the world of penthousees in SOHO, figure out quite quickly how to tastefully decorate their house, how to dress to impress, and so on. And the same would be true of the penhouse asthete if transplanted into a working-class milieu. Some people are just better than other people at figuring out aesethic systems.