I'm just going to say the usual thing I say whenever someone claims a $5 wrench undermines encryption:
You can't use a wrench on someone without them knowing you've done it. I can be intimidated, but I can't be intimidated without my knowledge!
So if you're a real mafia type, fine. You win, at least in a single attack. But you can't just monitor people for years with a $5 wrench. And even in a single attack, you've gotta commit to it and murder the target after torturing them for the key. If you fail to murder them, and if you're identifiable, then the victim gets to lawyer up and have laws and courts and stuff.
Wrenches can work, but they're overrated.