That fine is a joke. They make like 5x that amount every month.
> Facebook monetizes user information through targeted advertising, which generated most of the company’s $55.8 billion in revenues in 2018
Thus, all the money they make. All of it. The FTC now takes a small portion.
See Facebook care. (not)
If you think the government ought to just ban Facebook, sure, whatever, but that's not the FTC's job.
5B is one time 25% (or 9% of 55.8B revenue) tax. It's a far cry from a joke; certainly it's higher than AZ or other members of FAANG pay, while not outright terrible.