The greater complexity a technology requires, the wider the spread of the specialization of human labor, which paradoxically means a greater concentration of labor power due to the monopolizing tendencies of capital.
The more specialized, the more the worker must be oblivious of the greater production process, which of course happens of its own accord. Otherwise, the product, or the process of making the product, can appear as an abomination, or a nonsensical affair, devoid of the worker's imprint.