Still makes 0 sense. 20% of global revenue is much much more than 20mils. apple had 380 billion in revenue last year. so you want to fine them 76 billion?
also, "its nothing to them" is not an argument.
They have the opportunity to stop breaking the law. If they don't choose to do that, they face punitive damages. It has never been unusual for punitive damages to exceed the proceeds gained from breaking the law. That's why they're called punitive.
This isn't a situation where they do something unknowingly and then face some major consequences. This is a situation where they break the law, they're told to stop, they don't stop, they're told to stop again, they still don't stop. After that, rinse and repeat a few more times. 20% of global revenue sounds perfectly fair for this kind of stupidity.