So, like, they can create Supertech that only works for them, or works until a normal scientist tries to figure out how it works?
Seen it done in a couple series, not a bad power set idea. Expanding from that, having a world that becomes dependent on impossible technology (everyone just knows to "leave it to the geniuses" instead of trying to fix it themselves), could create an interestingly haphazard setting, with many anachronistic devices. A sort of new economy forming from the sale of these things, possibly hindered by both a lack of reliable mass-productivity, and people losing yet another aspect of independence to the growing power of technology (everyone HAS to get their new super-cars serviced at specialty Genius shops or risk destroying them if they try to so much as change the oil themselves). That's to say nothing of the job market bottoming out as ludicrous tech replaces the need for manual labor... until saboteurs start breaking all the advancements, because people need to be able to work, too, and if people just forget how to build houses, what happens when a disaster hits and all the house-building robots suddenly cease functioning.
This could see a rise of terrorists and villains who want to return the world, not to a natural state, but one where normal tech is the norm again instead of supertech. Some Geniuses then become heroes, either out of self-interest, or out of realizing too much of society is now dependent on them. Or they become tyrants. Who knows.
I didn't read the document, so I might be way off on what you're talking about, but yeah, "selectively operable supertech" could make for a very interesting setting, with surprisingly mundane concerns causing a whole lot of conflict for characters to deal with.