The amount of human workers to process the requests definitively must scale with the requests.
What may be desirable is cases where cost does not scale with revenue. But that should be no guarantee for long-term gains, because it provides room for competition that could make a cheaper offer at the same internal cost.
Just the use of "scaling" seemed a bit too narrow.
Produce x pieces and earn y. Produce 1000 times x pieces and earn 1000 times y. That's scaling in the traditional sense. "Everything" (+/-) scales.
Produce once at fixed cost and earn infinite - that's something beyond just scaling. Maybe leverage? If it would provide the same quality and lower prices it would be good for society. If prices stay high and there is an indirect cost in degraded quality for the sake of huge gains something might not be right.
What may be desirable is cases where cost does not scale with revenue. But that should be no guarantee for long-term gains, because it provides room for competition that could make a cheaper offer at the same internal cost.