Unfortunately, that leads to a divide by zero error in the case of Paris Hiltons and Donald Trumps who (a) inherit their property or (b) gain property through investment income. Unless the number of people in the economy who gain income primarily through wages remains constant, your metric is flawed. "Real" versus "nominal" simply means "with or without inflation adjustments." We can bicker over exactly how those adjustments are measured and applied, but simply trying to boil things down to how many hours of work the average person has to work in order to buy something ignores the realities of our economy.