Those miscreants who are grossly foolish, lowest among mankind, whose knowledge is stolen by illusion, and who partake of the atheistic nature of demons, do not surrender unto Me. (Bg. 7.15)
O best among the Bhāratas [Arjuna], four kinds of pious men render devotional service unto Me—the distressed, the desirer of wealth, the inquisitive, and he who is searching for knowledge of the Absolute. (Bg. 7-16)
…It is said in Bhagavad-gītā that simply by surrendering oneself unto the lotus feet of the Supreme Personality Kṛṣṇa, one can surmount the stringent laws of material nature. At this point a question arises: How is it that educated philosophers, scientists, businessmen, administrators and all the leaders of ordinary men do not surrender to the lotus feet of Śrī Kṛṣṇa, the all-powerful Personality of Godhead? Mukti, or liberation from the laws of material nature, is sought by the leaders of mankind in different ways and with great plans and perseverance for a great many years and births. But if that liberation is possible by simply surrendering unto the lotus feet of the Supreme Personality of Godhead, then why don’t these intelligent and hard-working leaders adopt this simple method? (from purport)
The Hare Krishna Movement 