Why are you using "collective delusions" as synonymous with social construct. My initial reaction is that the delusion was the other way around.That you were delusional (only while on mushrooms, I mean no offense) thinking social pacts were a sign of collective delusion.

I think generally the human population is well aware that these pacts can be broken at anytime. Armies can cross borders (imaginary lines), someone can take your personal property. But we use power to punish rule breakers.