Or, it's illustrative that what used to be truly middle class lifestyle can now be afforded only by people in top income percentiles, whereas the median income probably implies a lifestyle pretty close to poverty.
Also, cost of living needs to be applied to these numbers, 100k in the Bay Area is 65k in Florida is 45k in Georgia.
Affluence is about how much you can afford relative to the rest of your society. If you're only comparing yourself to San Franciscans and New Yorkers, doesn't that mean you don't consider the flyover Americans your peers? As if there were some large divide in wealth in this country?