You've just pointed out the number one reason we need to do away with our system of juries made up of the accused peers.
Professional juries, made up of paid government jurists would find many of these murderers, rapists, thieves, and assorted scofflaws not eligible for prison, and would allow those murderers, rapists, and thieves to continue to roam free among us.
We would then be able to lay claim to one of the smallest prison systems in the world.
Actually, very few accused face juries today. Especially in Federal cases. Most are forced to cop a plea.