He's wrong, greed isn't a sickness, it's a mental handicap. It inhibits the brain from experiencing empathy in people who amass great wealth and power.

It begs the question, why are we letting a bunch of evil, mentally handicapped people steer the course of humanity?

You'd think that if you were a doctor, and had a patient that was amassing a collection of any other thing, and that collection destroyed a part of their patients brain... You'd think the doctor (and society et. large) would want to limit the amount of that thing they were allowed to collect?

Especially if that thing they're collecting could be used to, oh I dunno, I'm just spit-balling here, give everyone universal healthcare, increase public education to include 4 year university, give everyone free childcare, invest massively in green energy and public transportation... you know, instead of just sitting in a Panamanian bank being hoarded by evil, mentally handicapped billionaires?