In the Gita, the leader of the evil forces had good men on his side.
"This suggests that evil cannot flourish by itself in this world. It can do so only if it is allied with some good. This was the principle underlying noncooperation--that the evil system which the [British colonial] Government represents, and which has endured only because of the support it receives from good people, cannot survive if that support is withdrawn."
--Gandhi on Ch. 1 of the Bhagavad Gita