Comment by graemep

People in charge love to measure productivity and, just as harmfully, performance. The main insight people running large organisations (big business and governments) have into how they are doing is metrics, so they will use what measures they can have regardless of how meaningful they are.

The British government (probably not any worse than anyone else, just what I am most familiar with) does measure the productivity of the NHS: https://www.england.nhs.uk/long-read/nhs-productivity/ (including doctors, obviously).

They also try to measure the performance of teachers and schools and introduced performance league tables and special exams (SATS - exams sat at various ages school children in the state system, nothing like the American exams with the same name) to do this more pervasively. They made it better by creating multi-academy trusts which adds a layer of management running multi-schools so even more people want even more metrics.

The same for police, and pretty much everything else.