I would have thought that this was called Goodheart's Law, and if so, a perfect current example of it is the obsession by numerous policymakers, health official

I would have thought that this was called Goodheart's Law, and if so, a perfect current example of it is the obsession by numerous policymakers, health officials and many members of the public with justifying so many different authoritarian and in some cases paranoid measures for the sake of stopping the spread of COVID (an impossible task at this point). Regardless of it being non-lethal or only mildly harmful to the vaccinated, the fixation has in some cases gone towards a blind need to try to "stop the spread", and an obsession with case numbers without consideration for whether they cause actual harm and mortality in largely vaccinated populations.