The telling comment in your post is "I know that piracy is wrong"
The fact that this man has been told he can sue the New Zealand foreign intelligence service because it illegally spied on him is a separate matter to the central issue, which is that he's accused of facilitating copyright theft to the tune of an estimated £322million.
He knows he'll go to jail for up to 20years if he's convicted in the US. He's denying the charges, which presumably means that he feels he is innocent. If that's the case one wonders why he's so desperate to avoid going to the US - you would have thought he would want to clear his name as soon as possible.