Report: 74% of Billionaire wealth comes from rent-seeking

"those heavily reliant on the state, like oil, gas and mining, gambling, or forestry, and industries that involve a lot of imperfect information and market failures, like finance, IT, and the music and fashion industry."

So NONE of the billionaires in those industries create any value? I just don't agree.

How about the hundreds of thousands of people that are now employed as a result of this 'rent-seeking' behavior?