But one can always wish for more. In my case, I would love to be able to get paid for non-passenger Commercial operations, mainly ferrying planes. As long as passengers are not involved, I think it would make sense to allow for such operations - I don’t see how they would entail substantially more risk than private operations. But I’m not complaining!
Silly, isn’t it?
The ferry plane’s owner could ride along with you and you could legally charge him for instruction. But he can’t remain safely on the ground and pay you.
Logic and the FAA shall never meet.