Coronavirus has boosted total billionaire wealth to its highest level ever. : Coronavirus has boosted total billionaire wealth to its highest level ever. Since the pandemic begun, the total wealth held by billionaires around the world has grown by a quarter to over $10 trillion. The landmark co-insides with another in the billionaire world, that of the world's first ever $200 billionaire. Jeff Bezos's net worth crossed the $200 mark in August, just when UBS and PwC were tallying up the data for its annual report on billionaires.