The essential principle of progressive, civilised human life is to restrain negative emotions within oneself and to limit their discharge towards others; and to cultivate positive emotions such as tolerance, compassion and non-violence. Lust, greed and anger are the three gates leading to Hell, reads the ancient Bhagavad-gita.
Perpetuating negative emotions leads to a permanent negative state within a person, and negativity throughout a society when it is made up predominantly of such persons.