This is correct for Mexico: Mid-tier income people will pay from 20% to 35% (in a progressive tax setting, granted). This is people whose taxes are collected a

This is correct for Mexico: Mid-tier income people will pay from 20% to 35% (in a progressive tax setting, granted). This is people whose taxes are collected automatically and they don't have any say in that money. Whereas rich people, they will invest in Stocks and REITS (FIBRAs in Mexico), the former has a 10% Tax while the latter (FIBRAs) doesn't have any tax (for generated "dividends"). So, rich people have better instruments to make their money grow and pay less taxes, while the average Joe is bled.