The word "Class" here in the United States, is mostly reserved for who sits where on airliners, the quality of cigarettes, a classification for eggs, rather than the relationship between a socio-economic status and its degree of access to Royalty.
Here, if we try to use the word "Class" outside the expression "Middle Class" in the context of society, discussion is reduced to invertebrate meandering around alternatives to the expressions "Upper Class" and "Lower Class." It's a meandering that produces ideas which even Goebbels might have thought too transparent for public consumption. "Job Creators," for example.
Oddly we approve of the word "class room." Which belongs to the "High School," or the "Middle School". A place where lessons are learned and diploma's earned. Stranger still is the idea of "First Grade." First Graders are the least literate of those in the school system, they fall just above kindergarten and a life time below their upper classmen, the "second grade".
But I do understand how it sounds to be informed that the "Upper Class" need to be worshipped as Royalty otherwise they sulk, take their toys and go elsewhere. "Good riddance," perhaps.