Elon Musk and Jeff Bezos, often criticized for exacerbating income inequality, have been described as a boon for the U.S. economy by a senior American Enterprise Institute (AEI) member. What Happened: Business Insider reported on Wednesday that Michael Strain, a director at the AEI, contends billionaires are vital for the nation’s economy, as their innovations generate substantial value. Strain’s defense of billionaires contradicts the widely-held view that they contribute to America’s wealth disparity. Strain particularly highlighted Bezos, pointing out that his $170 billion net worth is dwar…