Today, with a court order, one really can't expect the right to privacy from government surveillance, whether it is the tapping of communications, or even recording or photographing someone, including when they believe they are in private situations. There really isn't anything here to change that precedent. You are violating the law to refuse compliance.
I think the argument comes from the inferred, and unfortunately therefore hypothetical and fallacious argument that:
(Apple cooperating with government when complying with a court order on a known terrorist) = (total and constant government invasion of personal privacy of everyone)
There isn't a company in the world (gun manufacturers/sellers I'm looking at you) that can stand between criminals and their prosecution by the government by presenting the argument that it invades privacy of someone that a court has ordered to be monitored, etc.
If you disagree with this, then change the laws, but don't believe that public opinion is the forum.