This is just not true at all.

It is always in my self interest to automate my job as much as possible. Nothing looks better for moving up than this. Even more so, nothing makes me happier than automating a business process.

There are always so many various road blocks to automation it is hard to count.

It is like there is a type of entropy that increases over time that people are largely getting paid to keep at bay with simple business processes that can be easily adapted as things change. So often automation works great for a short time until this entropy breaks the automation. It doesn't take that many times for management to figure out the investment in automation gives poor returns.