Kindhearted women and kind men are celebrated. Kindness is selfless, compassionate, and merciful. Being kind means doing to others as I want them to be done to me. Being kind gain respect and benefits the giver and receiver.
Jesus describes the kind person this way, ““You have heard that it was said, ‘Eye for eye, and tooth for tooth.’ But I tell you, Do not resist an evil person. If someone strikes you on the right cheek, turn to him the other also. And if someone wants to sue you and take your tunic, let him have your cloak as well. If someone forces you to go one mile, go with him two miles. Give to the one who asks you, and do not turn away from the one who wants to borrow from you.
“You have heard that it was said, ‘Love your neighbor and hate your enemy.’ But I tell you: Love your enemies and pray for those who persecute you, that you may be sons of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. If you love those who love you, what reward will you get? Are not even the tax collectors doing that? And if you greet only your brothers, what are you doing more than others? Do not even pagans do that? Be perfect, therefore, as your heavenly Father is perfect.” (Matthew 5:38-48)
Ruthless and cruel people are the inverse of kind people. Though the ruthless may gain wealth, they lose respect and bring trouble to themselves. Being ruthless and cruel is a decision to not resist those impulses. A repeat offender has decided to not be kind for personal gratitude and gain.