The goal of all the great Vaishnava acharyas is to spread the glories of Lord, especially through sankirtana. ISKCON's founder Srila Prabhupada, a bonafide acharya in Madhva sampradaya, has succeeded in spreading this message across the world, especially through the chanting of Hare Krishna. The true credit of taking the message of the Srimad Bhagavatam to the western world and transforming the lives of thousands of westerners and making them Krishna devotees goes to Prabhupada and Prabhupada only.