Reverse psychology... could explain why many don't follow the ten commandments.
Much is about what Thou Shalt Not do, but the focus remains on the "sin" instead of it's opposite counterpart. Thou shalt not kill, we think of killing. Thou shalt be at peace and preserve life? Thou shalt not committ adultery... thou shalt be faithful to thy mate?
You see, much better terminology.
Now the commandments that aren't thou shalt not, are generally followed more often then the shalt nots.