I believe the point is that this group of people working together will easily consider him, an employee, to be a legal entity and a commodity and will not take

I believe the point is that this group of people working together will easily consider him, an employee, to be a legal entity and a commodity and will not take ethics into account when dealing with him. Why should the employee treat the company any differently? This is beside the point anyway. If you are considering leaving a company, then often ethics is the last thing on either entity's mind. Things are already wrong and it's time to move on.