Why did Sourav Ganguly choose BCCI Chief post over crores of rupees?

Meetings and counter meetings ruled the roost as the affiliated units of the Board of Control for Cricket in India (BCCI), along with the bigwigs of the board, met in Mumbai on Sunday.At the end of the day, former India skipper Sourav Ganguly chose BCCI chief post over crores of rupees. But why did he do so? As per news reports, Ganguly may be fielded by the Bharatiya Janata Party from West Bengal