Of course, human nature and corporate greed don't change. The difference is scale. In the past stores had to know you were rich to treat you better. They weren't checking your bank account balance at the door. Now they can and increasing do exactly that.
Same with real spying. Maybe you in 1980s china you had to watch what you said around your neighbors. Today you have to watch what you say while alone in your own home. It's just even just what you say today either, but everything you've said or written over decades that can be mined. You don't have to go to the other side of the globe to see historical examples of how this would have been abused either, Joseph McCarthy would have loved to have this data.
Again, the tech isn't the problem. It's great that was can film police abuses. It's great that we have GPS. What we don't have are regulations that prevent the abuse of our data which is collected and disseminated at an unprecedented scale and never goes away. there exists a permanent record of what you've said, what you've done, and everywhere you've been. We're going to see it used to hurt people more and more often. There are already plans to use this data to attack people who have gotten abortions. It could very soon be used against those in homosexual or interracial relationships as those too are now at risk of becoming crimes.
I mean tech is a double edged sword but I'm guessing the positive like police having a job beating people up without being filmed by some phone outweigh stuff like your roomba uploading your floor plan.