[labcomputer]

> One of the many fallacies here that hasn't already been pointed out is that it's impossible to determine the exact amount of revenue a single employee is responsible for in any real world employment situation.

Sure. But if it costs $100/hr in labor to run a McDonalds (split between cashier, burger flipper, fry guy), $100/hr in ingredients, and the store only produces $150/hr in revenue, it's not hard to figure out that those wages are unsustainable.

Blah blah, businesses don't deserve to exist if they can't pay whatever wage. Sure, but I'm not saying McDonalds deserves to exist--I'm saying those people won't have jobs when it becomes very obvious that the store is losing money.

Just because you can't pinpoint the exact contribution of every worker does not mean that you can't have a pretty good estimate of the contribution from retail workers in practice.