I don't think these fines are even making the slightest difference. Meta probably writes them off as the cost of doing business. As do other big tech companies.

This forgets that every fine like this comes with a court order they have to follow and Meta usually complies with court orders. It is a cat and mouse game where Meta constantly looks for new ways to break the law and the regulators looking for things to shut down but without the court orders Meta's abuses would likely be way worse.