Justice has come to mean equality of outcomes regardless of effort. Envy is at the root of it.
"You have this little strata at the bottom of people who are ne'er-do-wells and on the more psychopathic end of things and they are bitter and resentful and waiting for their bloody opportunity. And then the communist intellectuals come into town and say 'You know those people that are doing well? They actually... everything they've got is ill-gotten and they... they stole it. And they stole it from you. From you! And look how badly you're doing. The reason you're doing badly is because these people who are lording it over you and have all this creature comfort. They took that from you! It's yours by right!' So then all that resentment and jealousy and hatred and rage, alcohol-fueled as you might well imagine, has this moral reason to go with pitchforks and in a mob and surround those houses and to strip them of everything they have."