making government incentives align with the good of their population is the best way to make sure government does their job

prison should be a loss for all, and therefor everyone should want to reduce people in prison. you can’t do that by simply not having prisons, so you need to address root causes

everyone should be healthy. ensuring that governments pay for the eventual health issues ensures they setup preventative programs that help people to stay healthy for their entire lives (alternatively the dark side of this is, for example, smokers die early and therefor cost less because the government doesn’t have to pay for care for as many elderly people for as long so where’s the incentive to support quit programmes?)