Many people can get followers, wealth and respect, but this is not the criterion of being successful in preaching Krishna consciousness. If we foolishly claim this to be a criterion for successful preaching of Krishna consciousness then we'll miss the point.
One must have the authority of the Lord to be successful in spreading Krishna consciousness, and this authority is only invested in one who is the servant of a Vaishnava. Being the servant of a Vaishnava, the authority comes down from Krishna, and Krishna empowers him to spread the holy name.
March 10, 1991, Kiev