Earlier quoted context omitted.
> just those where the people involved have opposing goals. This describes every competition ever; person A wants the winner to be A, but person B wants the winner to be B. Should we stop doing doping tests at Olympic games, as it's an application of (non-free) technology to a social problem?
Medical tests are only part of the solution there. They would be worthless without the more important component: a trusted third-party tester. As we've seen with DMCA takedowns on YouTube, an automatic third-party arbiter ends up favoring one side. Usually the one who learns to game it.
That dynamic is exactly why so many people oppose electronic voting, electronic court "guidence" and other similar things.
People are super messy, complicated and the strength of automation coupled with the allure of doing less work is the root cause for an awful lot of unnecessary grief, despite let's say for discussion, the best of intent.