I don't think this will happen. It does not work with the capitalism if we have only few companies which have all this power. And many consumers don't have jobs left so the value of money increases faster than the "cost" decreases.

> Meanwhile the workers who were previously employed in menial clerical tasks will simply switch to supervising the AI's that perform those same tasks for them.

Put this to numbers, right now - if we remove all workers and leave managers on those fields - how many people are still employed?