Actually, I really looked the colors, it adds another dimension to the data: "given that you have X job, what is the chance that you would become filthy rich". I was actually frustrated with the graph until I noticed the meaning of the colors (viewing on a cell phone didn't help)
Yes, the colors indicate the correlation between the profession and the income. A darker color means that the profession is more likely to actually contribute to the income, while a lighter color means that those 1-percenters probably married into wealth or inherited passive income. In a graph showcasing the professions of the wealthy, the color is actually more significant than the relative sizes of the boxes.
Actually it's even more helpful than that: the lightest color indicates a less than one percent chance of entering the one percent, which means that that job does "worse than chance
at achieving "one percent status".
