I point you to this study (from October of last year, but as new to me as a never before seen rerun of 30 Rock) from the Center on Budget and Policy Priorities, which shows how the proportion of national income accruing to the top 1% of households is as high as it has been since the Great Depression. I encourage you to read the entire study, or just look at the graphic below, which sort of says it all.
Income Inequality
Thoughtbasket 