I believe it was Marx who first observed that superfluous jobs, as well as unemployment, are inextricably linked to capitalism.
EDIT: Found a relevant Marx quote in Grundrisse:
Capital itself is the moving contradiction, [in] that it presses to reduce labour time to a minimum, while it posits labour time, on the other side, as sole measure and source of wealth. Hence it diminishes labour time in the necessary form so as to increase it in the superfluous form; hence posits the superfluous in growing measure as a condition – question of life or death – for the necessary.
See also Marcuse, 1969:
The absorption [i.e. disappearance] of unemployment and the maintenance of an adequate rate of profit would […] require the stimulation of demand on an ever larger scale, thereby stimulating the rat race of the competitive struggle for existence through the multiplication of waste, planned obsolescence, parasitic and stupid jobs and services.