They have fewer customers than MIcrosoft but are much, much more profitable. You can do just fine thank you selling a $2000 PC instead of a $500 one.
And the ruling calss don't need customers when they can claim everything for themselves. The 99% will fall over themselves backward to get a piece of the scraps. They'll be the new kings, deciding who lives and who dies based on who gets to work for them (and who gets food, shelter, health care, etc). And they'll have an automated military to enforce their will. This isn't a hard thing to grasp. You just have to think like a ruler and not like an employee.