I was just trying to offer a quick explanation/summary of the concepts or the main distinguishing external features of each class, because I see a lot of confusion and wrong self-perception. I see a lot of people saying they're "mid to upper class" because they can afford a nice home and two cars. Just looking at how much money they have, not how do they have it or whether they can maintain that without working. Obviously to understand class and social stratification you have to read more. I am aware that the upper class are there because of the work of the lower classes and the surplus etc. I'm not obscuring anything, just offering some definitions. Sorry if it didn't come out that way.

Class traditionally

It only refers to how we engage with societal production in a handful of belief systems such as Marxism. These are different from how Anthropologists view class which is different from how sociologists view class and all of the above are different from how many older societies viewed class.