End to end encryption doesn't save you if the program is closed source. Even if it was all open source, governments definitely have a lot of information on you. It's only really a matter of time until the same data processing techniques that Google/Facebook use are used by governments to strip away even more privacy under the guise of preventing terrorism or similar. Given what Google can tell about you from your searches, imagine what a government could work out with tax data, census data, school data, health records, international travel records etc. Very few people actually want this, but it isn't the kind of thing that swings elections or parties campaign about.