Marx never once mentions an "elite class," because class is based on relations to ownership of the means of production, not arbitrary vibes. Marx mentions the ruling class, which is the class in society that controls the commanding heights of the economy and the state, but this is not a class in and of itself but merely a descriptor for the actual underlying class that does, such as capitalists or workers. I've read the Manifesto, sure, but a lot more than that, and not once did Marx separate from materialism and enter vibes-based analysis like you allege.