I remember hearing a talk of a tech guy who say why do techies like to talk about politics so much, and he said it's because tech-inclined people can see what the technology can do, and how it can be abused, and some want to warn the rest of the public.

Imagine if East Germany's state security service have the surveillance tech of China. Aha oops, I guess you don't need to imagine, you just have to look at China.