Our work in the earth regarding others’ lives is not to make better behaved people of them.
People need to know the difference between right and wrong. More important, though, is to know the difference between Life and death. Leading them to abundant life by introducing them to Life Himself will improve their behavior. Pointing out their mistakes and failures might not.
Jails are full of people who knew they were breaking the laws that got them arrested. Heaven will be full of people who met the Person Who served their sentence on the cross.