12 Things You Do That Are Holding You Back From Success. You compare yourself to others. You ask yourself the wrong questions. You wait for others' permission. You wait for the “right” time. You expect instant results. You don't take action. You create fake busyness. You listen to everyone but yourself.
Pious means devoutly religious but it also means compassion or pity that is showed for other people; and according to Socrates the Gods don´t have anything to do with that.
I guess he also finds it impractical for the human race to try to please the Gods when you should be helping people instead.