"The task of "creating jobs", regardless of efficiency, falls to politicians."
Really????
Politicians, on the other hand, see all the people from division Y that are now unemployed and don't have marketable skills. Depending on the industry and locality, increased competitiveness can increase revenue and local spending, keeping a neutral or positive effect on employment rate. But in general, automation is bad for politicians in places that lose jobs. Those politicians are tasked with providing incentives or otherwise stimulating the market to bring jobs back to the region. Efficiency is a second-order effect for politicians: it only matters insofar as it affects the solvency of the company or the ability to keep the local facility running. But many industries have de-facto local monopolies (e.g., due to high cost to enter a local market) or other circumstances such that maximum efficiency for the corporation is not optimal for local politics.
If you want to sell a new technology to a politician, you have to show the new jobs that will grow up around the technology rather than showing the efficiency gains from replacing workers.