I recently had my first experience with unexpected AI in place of a clerk. I phoned a small lawn-sprinkler install/repair service and AI asked some routine questions instead of the conversation with a clerk that I expected. That ended with 'Now I'll transfer you to Lucille'. A real person who had all the information on her screen to intelligently, and quickly, discuss alternatives for what I needed and dispatch the tech, that same day.
When the guy arrived he said this was one of several small businesses he has started. His business plan is build up clientele using mostly AI for a dispatch office then sell the going business and start another. Because his real objective was he could make a lot more money developing and selling small owner-operated businesses that couldn't exist without local labor - like this lawn sprinkler repair service.
I wouldn't be surprised if while Lucille is a real person, she might be in another city serving as dispatcher for many small businesses. There's your 4:1 efficiency. In this case maybe 10:1.
May you live in interesting times. ...