What do you think a free-market is? Something where the company could harvest the organs of the employees instead of firing them to maximize profits?
And that's the key issue. Positive sum (along with "first, do no harm") behavior is what makes societies healthy and prosperous. Laissez faire free market capitalism rewards extractive actions over positive sum actions with predictable catastrophic consequences.
You mean like firing the union bargaining team or laying off half your workforce?