"The people with the most assets" in aggregate are the upper middle class, lawyers and nurses and chemical engineers, not Bill Gates and Jeff Bezos.

But Bill Gates and Jeff Bezos are part of the upper class. There's the whole "millionaires paid by billionares" type stuff.

What I'm saying is that the upper middle class (e.g. the top quartile excluding billionaires) has more money than the upper class (billionaires), because there are so many more people in it. Tens of millions rather than a couple thousand. But then they're regular people, doctors and engineers, one out of every four Americans.