How it is "luxury" to want to address large scale crimes such as wage theft, price collusion, corruption, unequal access, and institutional racism/classism that are major underlying factors in street crime, including the lack of enforcement you mention here? From a nerd perspective, it's seems obvious that addressing underlying causes is beneficial to all of us. In fact, it seems likely that it's the only thing that will work in the long run. Policing might also be necessary in some cases, but it's not going to fix our long-standing social issues.