You suggested that they existed, so, yes, it does matter if you can't come up with any examples...while you know we have examples of the converse.
The fact that God dictated a law certainly does not imply that man, particularly as a society, ever willingly complied.
In fact...just the opposite. Man's natural reaction to God's command is disobedience.
Nevertheless, I would not have known what sin was had it not been for the law. For I would not have known what coveting really was if the law had not said, “You shall not covet. ”But sin, seizing the opportunity afforded by the commandment, produced in me every kind of coveting. For apart from the law, sin was dead.
Once I was alive apart from the law; but when the commandment came, sin sprang to life and I died. I found that the very commandment that was intended to bring life actually brought death. For sin, seizing the opportunity afforded by the commandment, deceived me, and through the commandment put me to death. -- Romans 7