Examine where this intuition comes from. Firstly, the problem is not "too many people are committing crimes", it's "prisons are profiting from people committing crimes", which creates a perverse incentive. Secondly, as a result of this perverse incentive, judges and lawmakers are incentivized to write and enforce laws such that the business model of incarceration is maintained. So the question of "How to make people commit less crimes?" is misaimed; the problem isn't with the people committing the crimes, it's with the people defining what is and is not a crime.