> everything that was bottlenecked on "sort a list" is unbottlenecked, and other parts of the process become bottlenecks instead. Thus, the demand for non-sorting tasks grows.

Your assumption here is that the other parts of the process are intelligence. In the real world they usually are not e.g. raw materials, politics, zoning, manual labor, clinical trials, traffic, energy ... And usually those things are such huge bottlenecks that Amdahl's Law renders the speed of delivery of the intelligence part irrelavant.