That is paranoia.
At any time any company could turn evil, and any free(ish) government could become totalitarian overnight. This is a fact, but also pretty useless one.
The real questions to ask are, how likely it is to happen, and if that happens, how much did all these privacy measures accomplish.
The answer to those are, "not very", and "not much".
Down here on Earth, there are more real and immediate issues to consider, and balance to be found between preventing current and future misuse of data by public and private parties of all sides, while sharing enough data to be able to have a functioning technological civilization.
Useful conversations and realistic solutions are all about those grey areas.