These two things aren't incompatible with each other.
> So $4m a year?
A $2tn company shouldn't be concerned with losing out on $4m.
No need to defend a $2tn company. It's okay to right-size this error.
Where that lands ethically, morally or legally is up to interpretation by the relevant people and jurisdictions.
Maybe if this was Alice in Wonderland. Apple knows the law and they hire responsible people to balance their books. If they prioritize fixing those rounding errors above the law, that is an objective failure. It is about as morally, ethically or legally interpretable as killing a politician you disagree with.