so … a CEO of a company that is valued in the billions of dollars - that CEO is not a billionaire, for context

The CEO is a millionaire, though - a quick search shows his compensation is over $4 million

I’m not saying every billionaire can be picked out in a lineup by a random member of the public, but just pointing out that no billionaire is escaping scrutiny or awareness of the public in some capacity (this is why I started with “even if not ‘famous’”).