In our daily life a certain way of thinking makes us happy, and a certain way of thinking makes us unhappy. In other words, there are certain states of mind which bring us problems, and they can be removed.
Criminals, people who commit crimes, usually society rejects these people. They are also part of our society. Give them some form of punishment to say they were wrong, but show them they are part of society and can change. Show them compassion.
Whether someone believes something or not, believer or non-believer, as long as you are a member of the human family, you need warm human feeling, warmhearted feeling.
People once considered that religions were obsolete and that material science would solve all human problems. Then they have become disillusioned with materialism and machinery and have realized that spiritual sciences are also indispensable for human welfare.