Anyone who does not serve Hari, the Supreme Personality of Godhead, is ignorant and a killer himself.
Only an empowered personality can distribute the holy name of the Lord and enjoin all fallen souls to worship Krishna. By distributing the holy name of the Lord, he cleanses the hearts of the most fallen people. Therefore he extinguishes the blazing fire of the material world. Not only that, he broadcasts the shining brightness of Krishna's effulgence throughout the world. Such an acarya, or spiritual master, should be considered nondifferent from Krishna-that is, he should be considered the incarnation of Lord Krishna's potency.
There is no scarcity of anything within this world, the only scarcity is of Krishna Consciousness.