But then those companies wouldn't be as profitable and he'd slip to being the world's 5th or 6th richest man... so why would he do that? Unless he replaced all

But then those companies wouldn't be as profitable and he'd slip to being the world's 5th or 6th richest man... so why would he do that? Unless he replaced all his workers with robots reducing everyone to 3 days a week, and reducing their salaries accordingly.