In think there is a common misconception about what is considered rich. Below are some income ranges by household. The only thing you have to remember about these numbers is that roughly 51% of the total households included are married couples so they have dual income.
US Household Income Ranges:
An overwhelming majority (94%)of households make less than $150k total, and furthermore a huge majority (84%) make less than $100k. This means that if a household has 2 income earners that each make $50k on average (well actually, men make more than women on average, but that's a different posting for a different day) then they fall into the top 16% of income earners in the US.
It's funny because whenever I think about the upper class, I'm always picturing these people raking in millions and rolling around naked on a bed with hot stinky sweaty hundred dollar bills everywhere. A household who makes $150k a year is in the top 6% of US earners, but that's only roughly $75k per person. I don't really think of that as rich (well at least not stinky filthy rich), but I would argue that by the numbers it is considered rich.