That's a simplified example I used to explain the point. Of course you rarely have people whose job is nothing but hiring, but often you have people whose all responsibilities revolve around inefficient processes, and making these processes efficient threatens their jobs.

TurboTax is a great example of this - the entire purpose of their existence is to make sure that filling taxes is as complicated as possible so that people keep using their services. In other countries simpler and cheaper tax systems are used, but if such a system was adopted in the US, the entire business model of TurboTax would immediately collapse, so they will fight tooth and nail against any improvement.