The honor of the person ordered to be restrained.
In the right hands, worth all the money in the world.
In the wrong hand, not worth the paper it's printed (in triplicate) on.
I see, now, how such orders drive people to break them. There's so many innocuous things that cry to be said. Things like "don't forget to check the oil" in their car with a slow drip.
Things that, if they're said, break the no contact order.
Persons without honor don't see that they must hold firm and do what they must. Including replacing an engine months later when things blow over.