Yoga-bhraṣṭaḥ. Śucīnāṁ śrīmatāṁ gehe yoga-bhraṣṭo 'bhijāyate (BG 6.41). You'll find in the Bhagavad-gītā. Śucīnām and śrīmatām. Śucīnām means purified family. Just like in India we have got the ideal purified family, a brāhmaṇa. Of course, nowadays, due to material advance of civilization, everything is polluted, but according to... Still there are some families, very purified. If you go to their house, at once you will feel, "Oh, it is a place, fully purified." So śucīnām. Śucīnām means in the family of such purified brāhmaṇas. And śrīmatām. Śrīmatām means in the family of rich men.
Why these two chances are given? Because in the family of a pure cultural family, you get the chance of regenerating your lost spiritual consciousness which was unfinished in your last life. That you get chance. And in the rich man family you get chance because you haven't got to bother yourself how to maintain your body and soul together.