When one identifies his body, his mind, his activities—everything—with Kṛṣṇa, then there is no more such distinction of "higher" and "lower," either in work or in thinking or in action. No more. Because that is the purificatory process. Never mind what was your status of life, what was your family life. It doesn't matter. Prāṇaṁ punāti sa kulaṁ—he is immediately purified. Not only himself, but with his whole family, purified.
Prāṇaṁ punāti. Na tu bhūrimānaḥ: and that man who is under false prestige, impression that, "I am this," "I am that," "I am higher," he cannot deliver himself even, because what is the value of false prestige? False prestige has no value. If you are actually brahmin or if you are actually king, you can be proud of your position that, "I am king," "I am this" or "that." But actually if you are less than the śvapacaṁ, the dog-eaters, but why should you be proud of your false prestige?
Therefore by that false prestige he cannot even deliver himself, what to speak of his family. That is stated here.