This reminds me of a passage from The Right To Read, a short story by Richard Stallman:
There were ways, of course, to get around the SPA and Central Licensing. They were themselves illegal. Dan had had a classmate in software, Frank Martucci, who had obtained an illicit debugging tool, and used it to skip over the copyright monitor code when reading books. But he had told too many friends about it, and one of them turned him in to the SPA for a reward (students deep in debt were easily tempted into betrayal). In 2047, Frank was in prison, not for pirate reading, but for possessing a debugger.
Dan would later learn that there was a time when anyone could have debugging tools. There were even free debugging tools available on CD or downloadable over the net. But ordinary users started using them to bypass copyright monitors, and eventually a judge ruled that this had become their principal use in actual practice. This meant they were illegal; the debuggers' developers were sent to prison.
In this story, the acronym "SPA" stands for "Software Protection Authority", the official (that is, they operated with authority given to them by a corrupt government) copyright trolls of this fictional future society.
The judge in this story did pretty much the same thing as the real-life judge in the Nintendo case: they both ignored the legitimate uses of a piece of technology, and just looked at what the mega-corporations wanted them to see.