[arp242]

"No value" is of course not the same as "net positive benefit".

Takes drones for example. I've been woken by them at 7am on campsites. I've been quietly reading a book at the beach only to be disrupted by some instagram addict with a drone. Peaceful walks in the mountains have been disrupted. As far as I'm concerned, they're a net-negative. They're excessively loud, annoying, and as far as I'm concerned they're net-negative.

You're other examples are more complex, but my point is mainly: "provides value" is not identical to "net positive benefit".