His is a silly argument. They are concentrators. The same bs that gives rise to effective altruism and trickle-down: give us all the money and we'll use it wisely on your behalf. Total bs. It's not like they need to be billionaires to deliver value to others, do they? Even if the pie grows, they take a disproportionate share, and as that share compounds, they end up owning everything of value. You can fibbert on your phone and order stuff from Amazon while they actually have privacy, security, passive/tax-evading income schemes, and access to government policymakers. That $45 per worker and consumer is illusory, real wages are far lower than 30 years ago when we had fewer billionaires.

They capture far more value from their employees than any of their employees do. If you have 5 ticks on your leg, which one skeeves you the most? The one that's sucked the most blood.