Earlier quoted context omitted.
Valid point lets go with instead Alpha (“the upper class”) Beta (“the second upper class”) Gamma (“the middle class”) Delta (“the second lower class”) Epsilon (“the lower class”) Double-Plus (“the superior subdivision among Alphas”) Plus (“the superior subdivision among Alphas, Betas, Gammas or Deltas, but inferior to Double-Plus”) Minus (“the inferior subdivision among Alphas, Betas, Gammas or Deltas”) savage (“a pe…
Gamma is not "the middle class", it's "blue collar". You don't really need deltas and epsilons in the long run. Unless they are very cheap to have, robots are going to replace them.
Unrelated, this does make me want to watch Gattaca[1] again :)