The third consideration, given the re-emergence of issues like technological unemployment, income and wealth concentration and the domination of capital (machines) over labour, involves the possible repercussions on aggregate demand.
Those who argue that the fruits of technical progress and the relative increase in productivity will mainly benefit the relatively few owners of the new technology firms are certainly raising the question of distributive fairness. At the same time, however, if they are to be produced at all, those fruits need a sufficiently high level of effective demand.