Don’t really like it though as it is a bs expression used by employers to discredit workers that do exactly what they were employed for and don’t gift the employer their free time. You know, just like most employers don’t do anything but to pay you the bare minimum that they can get away with all while expecting you to hand out gifts to them.
My first though was sunken cost phallacy, but then again maybe it’s in the nature of authority-obiding jobs to attract people who, well, would love to live in an authoritarian regime. Life is simple and structured this way.