I visited a chocolate confection assembly plant. The only things humans do now is random tasks like flip the random bar that for some reason fell odd onto conveyor or shift the skewed box on the pallet, or open the door for a shipment.

The rest was automatic, from the pipes running chocolate throughout the plant to the final gluing and boxing.

The costs are materials, and the factory operation cost, labour is almost nothing. So to increase profit they really can only cheapen or lesson the materials