A propos this, Professor Wolff is completely right.  Professor Wood is a moralizing reader of Marx, in my sense.

ADDENDUM:  Some readers appear to have drawn the wrong inferences from this brief comment of mine and the link to Prof. Wolff.  Allen Wood's book on Marx is terrific; Allen was my first choice to write the volume on Marx for my Routledge Philosophers series, but he was then working on Kant, so declined.  He famously defended in the 1970s the (correct) view that Marx did not criticize capitalism for its injustice.  But all that being said, his remarks in the quoted interview are vulnerable to the criticism leveled by Prof. Wolff.