I don't see snobbishness among folks in the "S" cabins....sorry you did.
HAL does not 'give' them more; they sell them more. All of the amenities that accrue to guests in those cabins have paid for them. They are buying more than just a larger cabin. They buy use of the Neptune Lounge and Concierge, priority boarding etc etc
They pay considerably more to get more. Same as Concierge Class in fine hotels; first class section on airplanes.