Final answer:
Justice Iacobucci's decision is subjective. Employees can protect themselves by negotiating contract terms and seeking legal advice.
Step-by-step explanation:
Justice Iacobucci's decision is a matter of personal opinion, so it is subjective whether or not one agrees with it. However, the question of whether employees should be able to rely on a clause in a contract to which they are not parties is an important legal consideration.
If employees are not permitted to rely on such a clause, they can protect themselves by negotiating for specific terms and conditions in their employment contract that address their concerns. They can also seek legal advice to understand their rights and obligations under the contract.