This had probably been asked before, but why is it only materialists and xenophiles who get to be guardians?
It might make sense for the xenophobes to not care if the Galaxy burns. Although it's bafflingly stupid as a long term strategy..
But why not the Holy GUARDIANS? When sleeping they give gifts to the true believers. Awake they wanna save our souls, and they sure get pissy when some foolish materialists commit species wide suicide.
Makes no sense to go shrug when all them souls get eaten.