If a company simply ignores fines, the regulators will assume that they didn't choose high enough fines, since it did not hurt the company enough. They'll schedule another meeting, check whether the company still breaks the rules in the same way and if so impose fines which are a lot more painful.
You can expect that to happen way faster and with way less bureaucracy then the initial fine.
it'd be interesting to imagine how a company could potentially still operate in a hostile country, if said company is only dealing with cyberspace products (such as software/saas).
Would they be able to continously ignore any/all rulings, by operating the datacenter, and any payment mechanisms, outside said hostile country?