In the last article on serverless, I referenced the old ad in the New York City subways for a trade school. Their tagline was similar to, "technicians will always be needed, because things always will break."
We technologists are familiar - intimately - with fixing broken things. Sometimes, it is our own software, devices or infrastructure; other times, it is someone else's. Either we have become responsible for it, or we need it to work under certain circumstances where it simply fails.