I feel like there are probably diminishing returns on picking your best metric... Like, does it matter if the number is 5x as deadly or 2.5x as deadly when you

I feel like there are probably diminishing returns on picking your best metric... Like, does it matter if the number is 5x as deadly or 2.5x as deadly when you consider that not adjusted for population we have a ton of traffic deaths in the US? The priority is to not kill as many people with cars. We just convince ourselves that it's reasonable to have a baseline number of deaths based on how big our population is for some reason. It's not better if we're expanding that definition to arbitrarily include some quantity of driving. If driving is causing more deaths, we should probably be trying to limit the amount of driving we do.