Chapter 48 says Sai is 'subservient to his devotees.' Doesn't this diminish his status as the Supreme Brahman and suggest a transactional relationship where he is obligated to serve them?

The phrase "subservient to his devotees" in Chapter 48 is not presented as a weakness or a transactional obligation that diminishes Sai's supreme status. Instead, the text frames it as a conscious act stemming from his "pure love of the devotees." It is described as his vow, undertaken "to clearly show the multitude of devotees that he is the beloved of his devotees." This quality is celebrated with victory cries like "Victory to the Mass of Consciousness, who is subservient to his devotees!" and is juxtaposed with descriptions of him as the "Eternal Supreme Brahman" and the "witness of all." Therefore, his subservience is portrayed as a profound expression of divine love and grace, not a limitation of his power.