The upper-middle class

is almost identical in wealth to the two classes above it. The major difference is that this class almost invariably earned most of it. This may have been done through standard businesses such as oil, law, and medicine. It is defined by gender-role reversal, costly educations, conservative on sexual display (eg: nudity.) It's also defined by the size of their houses; more specifically, the number of rooms that they don't necessarily need.