As this author makes clear, respecting the persons and interests of others as we live our separate lives together in this world is what justice must truly be. That follows from a belief in equality, not the assertion that 'individualism' makes liberty the predicate, or source, or foundation, etc. of justice. Properly understood, liberty is the product of just relations among people.

Ergo, "Equality Is All We Need" (here in Medium). There is nothing in mutual respect based on a belief in equality to require redistributing anything or imposing any limit on income/wealth--but it can be applied to the existing economic system to eliminate unemployment and poverty, all the same.

Don't believe that's possible? Read the link.