Death is Nature's remedy for all things, and why not Legislation's?
This feels like a pretty harsh view of the world, but possibly from Dicken's own frustration with legislation and brutality of the French Rev. You could call it a "radical" view or progressive of its' time. He's arguing that if death ends suffering and injustice 'naturally', then why not abolish the laws that do so to others? Why not serve the miniority?