That's an easy one...
The practice is right, being the client upper on the food chain.
Application is usually wrong - As soon as Consumer Quality of Service [of that slice of service non-leveraged] is diminished because of the leveraged kind.
And that is easily testable, and Consumer Organizations should be.
A consumer has no reason to complain if the contracted service is provided in full.
Allow us to think that a 'well intended actor' [where are those?] a well financed university with private donations [Harvard?] decides trough their own Senior Advisers Board to provide free On-The-Distance-Education to some forgotten-of-the-World zone.
Local Government at that zone provides for a bare-bones contract and [Harvard?] provides education through this zero-rate-tariff mechanism.
What [Harvard?] could be doing wrong? This mechanism ensures that resources are ONLY SPENT on the Courses themselves.
This same [zero-rate] mechanism could be used by National Libraries to provide all of the classic books [not going to talk about damn extensive copyrights] to all of their Population, on the mobile also.
Educative Bodies on the always dismissed Documentary Video Libraries. etc. etc.