Sometimes when you are sincere and nice to people they back stab you. Your kindness, compassion, and desire to improve the person professionally and personally will be interpreted as weakness.
A leader can tolerate everything except dishonesty and disloyalty. In such a situation, he has to take the iron hand out of his velvet glove and act. It is then time to remove that person from the team, division, company, or country.
What do you think---?