Historian says billionaires should stop talking philanthropy, start talking taxes Historian and author Rutger Bregman made waves at the World Economic Forum in Davos when he told billionaires in attendance that large marginal tax rates, like those suggested by Rep. Alexandria Ocasio-Cortez (D-NY), are better for the public good than philanthropy. Bregman joined CBSN to discuss how tax policy could be used to reduce inequality.