Glenn Greenward: Why privacy matters?
Although this talk is 8 years old already, I believe it is even more relevant today than back then.
I attempted to put the gist of it in text, but I couldn't.
If you are interested enough you'll watch the whole thing, if you're not, I doubt you've reached this line.
Though, I'll quote Rosa Luxemburg's phrase (slightly paraphrased): “those who do not move, do not notice their chains”.