They're not entirely the same thing. For example, if you think people have a right to privacy, one way to fight for it is to write cryptographic software, so everybody who already agrees with you can protect themselves. That doesn't require you to convince anyone who disagrees.

If you fight to win (in at least as much as keeping your freedom to encrypt), you will have to convince your government at some point. The topic won't go away and if they care strongly enough you might find yourself in your own private full-on intelligence war, and maybe in prison. At some point tech cannot help you (rubber-hose cryptography).

Law is not the only moral battlefield.

Could you elaborate? I think I do not understand your point.

That isn't fighting for your morality, though. That's just making crypto software.

> Fighting for your morality is convincing others of its superiority.

Unless your morality includes letting others come to their own conclusions about what is right. In that case, trying to convince others that they should let others pick their own morals would be self-contradictory.

In what sense are you fighting for your morality, then? It isn't contradictory to hold that view, but if you hold that view, then inherently you would not fight for it.