There is a verse that says that all the demigods’ good qualities automatically manifest in those who have developed unalloyed devotion to the Supreme Lord, Vasudeva. These qualities may not appear the moment we take brahminical initiation, but still, we have to become greedy for Krishna and the devotional qualities will gradually be ours. Prabhupada often explained that in giving brahminical initiation he was giving the devotees the chance to become brahmanas. This means that we are being given the chance to develop devotional qualities.
LFD Vol 2 Pg 381 2nd Paragraph