Income Inequality: Not counting the impact of the Great Recession which, if Government reported the true rate of inflation, we are still in, the vast majority of American families are worse off than they were 30-35 years ago. Growth in national income has gone to the top and stayed there: so much for trickle-down economics. Large differences in income between various cuts of demographics exist and are expected to exist. No one begrudges the rich for being rich. It is the level of inequality that matters. It is a fact that health and social problems are more common in more unequal countries. It is a fact that we are the most unequal in the developed world.
Nothing separates Conservatives from Liberals more than their values related to social justice, a term coined in 1840 by a Jesuit Priest who related it to the teachings of Saint Thomas Aquinas. Economics cannot be separated from politics. Neither can economics be separated from social justice, unless you happen to be an economist. There is a way to move from power and greed to compassion and the common good but you will never hear a politician or an economist speak of it.