In the future of the Terminator world, the AI network Skynet has effectively become the government, and manages to crack down on the human resistance through utter control of the world it governs. It allows no individuals to maintain any degree of privacy at all, in an attempt to preemptively crush any resistance that forms, and to keep new people from joining a new resistance. In spite of this, the human resistance ultimately does defeat Skynet in Terminator's timeline, prompting the events of the first movie. The Terminator's dystopian future and subsequent resistance movement highlights how dear humans hold privacy as a fundamental right, as it shows that people are often willing to fight and die to maintain the right to it.
Throughout the movie, and as discussed on the information privacy page, the Terminator is consistently able to access critical information about the person it is hunting, which nearly allows for it to succeed in killing it's target. This raises the question of to what extent should the government act to protect individuals' privacy. If the pre Skynet government in the Terminator universe had kept it's citizens' information more secure, the Terminator would not have been able to find Sarah Connor at all. Likewise, in the real world, most people have plenty of personal information that is publicly available. To whether having this large amount of personal data available to the public is a good thing or not remains a matter of contention.