I can’t deny the truth of this, it’s true that only a relatively small group of jobs could realistically implement this. You can’t make a delivery truck go 20% faster, or get 20% more customers in your store at a given time. Many such jobs scale productivity with time by their nature (to some extent). While I absolutely think those workers deserve the same pay for less work at the very least, the reality is that no company will do it. There’s no benefit for them.