In the real world, many states freely admit that they will fight against secure, private messaging between citizens (say, because law enforcement needs a backdoor to solve crimes). And while governments can, and do, make laws to that effect, improvement will be legislated away beyond a certain point. This also produces a chilling effect on engineering: why work on a technology that will likely be outlawed if successful?
In most cases when the government is making laws to criminalize X trying to overpower it with better engineering just does not work. My 2c.