Persons who smell the aroma of Lord Krishna's lotus feet, carried by the air of Vedic sound through the holes of the ears, accepts Krishna's devotional service. The Lord is never separated from them.
A devotee is the friend not only of human society but of all living entities, for he sees all living entities as sons of the Supreme Personality of Godhead. He does not claim himself to be the only son of God and allow all others to be killed, thinking that they have no soul. This kind of philosophy is never advocated by a pure devotee of the Lord.
The whole world is full of violence and a devotee's first business is to stop this violence, including the unnecessary slaughter of animals.