Considering the strict caste and purity rules of the time, how did high-caste Brahmins and Agnihotris react to Sai Baba, whose origins were unknown?

Chapter 7 of the Shri Sai Satcharitra explains that Sai Baba's divine nature transcended social conventions, earning Him reverence from all, including the most orthodox. Despite the ambiguity of His caste, the text states that the "best of Brahmins" would come to worship Him. Even Agnihotris, who were keepers of the sacred fire and held strong views on ritual purity, would abandon their pride and prostrate before Him. People who initially came to find proof of His background would be so amazed that they would become silent and humble in His presence.