[bcantrill]

So, interesting example: how much do you know about surgery? The best surgeons care about things that are not, in fact measured -- things that amount to the quality of the craft that very much correlate to patient outcomes, but are also hard to measure. Indeed, if you really get a surgeon going, they will complain about the things that are measured -- namely, the number of surgeries that they perform. I know of more than one surgeon who has left their craft because this quantification was essentially forcing them to perform unnecessary procedures!

In general, quantification of human endeavor is fraught with peril -- even in those domains where it would seem to be entirely non-controversial like professional athletics.