The show of appreciation by Bezos Tuesday to Amazon employees and the customers who "paid for all this" following his record-setting space flight did not dazzle the likes of Sen. Bernie Sanders (I-Vt.), Rep. Alexandria Ocasio-Cortez (D-NY) and Sen. Elizabeth Warren (D-Mass.).

"Am I supposed to be impressed that a billionaire went to space while he's paid zero in federal income taxes some years and the workers at his company struggle to afford their medical bills, rent, and food for their kids?" Sanders tweeted. "Nope. It's time to invest in working people here on Earth."