I didn't read it like that. It's pretty clear from your statement (even taken out of context) that you expect lower loyalty on both sides.
On the other hand there are bosses that would like loyal employees, even though they're not loyal themselves. They may even get a simulacrum of loyalty, as the fear of unemployability increases with unemployment itself. (Unless we take rather drastic measures, unemployment will continue to rise. Next in line are drivers.)
Beneficial mutual relationship under Ricardo's law of comparative advantage is great, but we must not forget that some people, organization, or even countries, may have no comparative advantage. What are we to do with them? We can let organizations and countries collapse, but surely we shouldn't just let people die?
Finally, it's not clear that work is really voluntary when the alternative is not being able to eat: employers face this conundrum much less often than employees do. There's a fundamental asymmetry there that when strong enough turns "voluntary" into plain old blackmail. (As a white male programmer, I don't believe the asymmetry I face is that strong. The neighbour who works at Starbucks however…)