Comment one: In setting up the criminal justice system long ago, the founders wanted it to be expensive to strip a citizen of their freedom.  Not expensive per se, but burdensome.  The reason, of course, that offenses not worth the effort/cost should not serve to deprive a citizen of freedom.  Murder, rape, etc. will always be core serious crimes.  Many other crimes, the drug crimes, minor shoving matches, etc. etc. are often of no real consequence, but the criminal justice system is involved because 1) prosecution is no skin off the citizen's teeth, 2) the system feeds many and must have meat to grind.

Two: In the multiple crime scenario, some triage may not be so bad.  But I do not think that most plea bargains are in that category.  More likely a man will be charged with felony kidnapping for holding the door for 30 seconds during an argument.  This, of course, is obscene abuse of the kidnapping statutes, but such a charge will instantly force a plea giving its massive sentences.