Unfortunately that doesn’t help anyone outside the US, not because of differences in the legal systems, but because as an American company Apple will always have to defer to the US agencies first.
I’m pretty sure a foreign shareholder can sue in a US court of law. While I agree that “shareholder” in this case means extra-massive moneyed entity, I firmly believe that even this provides a deterrence effect. At the very least, for the scale of operations in the US, there’s an extremely high trust environment. That level of trust doesn’t exist even for orders of magnitude smaller issues in most other countries