It's fairly clear that, absent a world government, national laws apply to companied outside of the nation based on the combination of will and ability of the particular nation to enforce penalties on foreign violations.
The ability side tends to be very high if the company at issue has any substantial assets held in the country trying to enforce the rules, or in a another country with an interest in keeping that country happy.
The ability side tends to be very high if the company at issue has any substantial assets held in the country trying to enforce the rules, or in a another country with an interest in keeping that country happy.