Righteous indignation is a virtue; but indignation expressed in envy, maliciousness (or both) lies somewhere between vice and vicious.
Source -- Aristotle's Nichomachean Ethics.
A lesson that is not lost on hypocrites at the DNC like head rat Terry McAwful (who turned $100k into $18million in personal wealth).
They seek to motivate a political base by pitting people against one another (and tell them that the only one gets rich is by exploiting others).