"Working" is a generous word for his position. The "work" involves flying with private jet to expensive places regular people have never stepped foot in for noncommittal meanings, showing up around the office at random times, have a word with random high-level managers in the office. All the while not having the slightest thought about someone evaluating your performance or output.
Also the part where you have three meals a day prepared for you, children’s needs taken care of, laundry washed ironed and folded, house cleaned. Working “hard” as a billionaire doesn’t mean shit.
> A centibillionaire (prefix: centi- from Latin centum 'hundred' and billionaire)[2] is an individual whose net worth is at least 100 billion units of a given currency, typically USD.
I agree it's weird - I would also have expected it to mean 1/100 of a billion, like a centimeter means 1/100th of a meter. I assume it's a term made up by an american or british person.