Whenever there is something smarter, it’s always a unique one-of that can’t be replicated.

EMH mark 1. They duplicated it and used it for cheap, menial labor. Despite the fact that it was capable of real intelligence (see The Doctor). It didn’t dive deeper than that; it was literally the ending scene to a single episode that simply left the audience thinking about the implications, as well as showing a possible start to an uprising.

Even sci-fi has a hard time figuring that out.

Science fiction just is about entertainment. An AI that’s all but invisible and causes no problems isn’t really a character worth exploring.