This cartoon from The Seattle Times illustrates how America's economic pizza is actually sliced per capita, highlighting the massive disparity between the Top 1%, the merely wealthy, the upper middle class, and the lower 50%.
I just don't think it's an honest way to show the data. You could use the exact same method but put the richest individual as one group and the entire rest of humanity as another group and show that the top 1 person gets the entire pizza except for one microscopic crumb but of course that would be extremely misleading. I'm fine with per Capita wealth per wealth group as a metric but it doesn't lend itself to be used in circular graphs. A bar graph would be less misleading. But of course that wouldn't be good in a comic. I'm also against extreme wealth inequality but we are not going to solve it by misrepresenting the data. The non misrepresented data is already telling enough.