Capitalism by definition will create a divide of economic benefits. The argument that is endless is about the nature and extent of that divide. It extends to how both wealth and income should be distributed (and there is a direct correlation between the two). How much social inequality is acceptable in wealth and/or income? As a statistician, the argument then becomes how should wealth or income be distributed? In a standard normal curve; or some derivative?
Regardless of your argument, look inside your emotions to determine if your argument is based on envy or compassion. Suddenly you realize why tax policy becomes so volatile.