Nobody needs to justify why they "need" a right: the burden of justification falls on the one seeking to infringe upon the right. But even if they did, you can't give away the rights of others because they're not useful to you. More simply, the majority cannot vote away the natural rights of the minority. Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say.
Edward SnowdenPeople have to be free to investigate computer security. People have to be free to look for the vulnerabilities and create proof of concept code to show that they are true vulnerabilities in order for us to secure our systems.
Edward SnowdenWe have to be able to reject disproportionate and unjustified responses in the cyber domain just as we do in the physical domain.
Edward Snowden