At WIRED's "The Big Interview" event earlier this month, Cost Plus Drugs founder and "Shark Tank" star Mark Cuban was asked why he doesn't make more profit at his low-price drug company.

"You're pretty clear that you are not doing this for altruistic reasons - you're running a business," noted the event moderator.

"Well, I could make more money," Cuban said, to laughs in the crowd. "We're a public benefit corporation. But how much f---ing money do I need?"

"I'm not trying to go to Mars," he added, with an obvious dig at his billionaire rival Elon Musk.