like people used to be able to travel before cars as well, cars didn't solve a new problem and the world didn't have any demand for them too. but once they became available, regardless of whether someone knows it or not, the whole world needed cars. now the car builders control the demand because they can't instantly scale up the supply
AI is similar to that but people can scale it pretty quickly to the whole world, there are a number of efficiency problems being solved in the world using AI. a couple of years ago I had to research and read atleast 1 hour worth of content to find out the information that I needed, google was good but still it required 1 hour. now its hardly a couple of minutes with chatgpt in many cases.
efficiency problems usually don't manifest in demand, people adapt to the status quo