When I watch Iron Man or Batman talking to a computer, I don’t see some pinnacle of efficiency, I see inefficiency.

Things like Jarvis from Iron Man are far beyond of just translating speech to computer commands. Like in the first Iron Man where Jarvis pretty much manages the whole process on manufacturing the suit and can autonomically manage a fleet of them. I could see benefit if some kind of AI could just listen on a engineers discussion and update CAD models based on that, taking care of that the assemblies work as they should, keeping everything in spec and managing all the documents accordingly. But that's pretty much human-level AI at that point and specially the current LLM hype is fundamentally very different from it.