USAns like to pretend that social class doesn't exist, because meritocracy. That doesn't describe what we actually have, though. Meritocracy would require that everyone start at the same level - of wealth, of privilege, of safety and health and education and food.
Instead, we have meritocratic ideals, a few meritocratic policies, and a distinctly uneven playing field, which does not result in a meritocracy. Wealth buys political power which consolidates wealth, and we end up where we are, with a very clear distinction between the 1% and all the rest of us.