Look at the US median and consider again how many times that figure your own salary is.
And then ask your if that person on the median salary has a lot of disposable income?
They might be richer than someone in a poorer country, but the median in the USA, is not rich _in_ the USA.
Rich is relative, it's always somewhere around "makes twice what I do" and poor is "makes half what I do" - and I'm, of course, solidly middle class.
This seems to be true if I'm flipping burgers at McDs or if I'm on a first-name basis with Warren Buffett.