Now, add VAT to income taxes, and change the referential. Top 1% gives back X% of their income as taxes, top10% gives back Y%. If Y>X, you have inequality issues.
"Inequality" in percentage but not the actual revenue. Not sure what is the point of adding VAT though. "The rich" does not pay it i presume, just like "average people" are free of capital gains taxes (lmao).