I think this is a common problem. Some of us sometimes feel guilty for being happy.
> the shit (that we threw) hits the fan
I'm not sure anyone is to blame because no one created human civilizations except all of us. My view is aligned with the human potential movement. As I understand it, we need a lot more work to overcome our tendencies towards what Catholics call the Seven Deadly Sins: Lust, Gluttony, Greed, Sloth, Wrath, Envy, and Pride. We are over-coming our primitive animal nature to something more intelligent and refined. Buddhists among others have a lot to say about letting our troublesome thoughts and emotions go and focusing on our resting nature. I like the Kundalini model for a nice way to visualize our human potential.