The systems fail because they willfully misunderstand human nature, choosing to believe we're more selfless and altruistic than experience shows most of us to be most of the time. See, for example, Venezuela - a formerly wealthy country driven into ruin by the socialist policies of Chavizmo.
On a happier, if somewhat irreverent note, grad school friends from icy Minnesota celebrated the day thusly:
Yea, yea, the first of May, outdoor sex begins today.Imagine how odd that sounded to a native Californian.
