There's also the observation that indulging everyone's preference doesn't necessarily lead to a global optimum. A straightforward analogy is traffic, or crowd c

There's also the observation that indulging everyone's preference doesn't necessarily lead to a global optimum. A straightforward analogy is traffic, or crowd control - if you let everyone follow what they perceive to be the optimum route, the flow becomes dysfunctional as everyone tries to occupy the same space, and occasionally people even get squished.