However, and as we all agree, it's much difficult putting them into use. We need these services. If I get lost, I need Google Maps to find the way. I need GPS. These are things that have no other alternative.
Likewise, if I want to talk with a friend over video and I tell him I don't want to use Skype, he laughs at me. Will he download and install Jitsi just for me? No, that is not how it works.
If we are using these tools for ourselves, say personal browsing using Tor, that is fine. But the moment you start interacting with someone else and expect them to send you PGP encrypted emails, not to use Google Talk/Skype, people just don't care and will not switch to other alternatives. Also, you will get laughed at for being a paranoid nut. Unless these secure alternatives become the norm, good luck expecting others to change. That means your family and friends who just want to use a service and don't care about the privacy problems behind it.
TL;DR: our reliance on these technologies makes it difficult to completely let go of them. And for most of them, there are no privacy-preserving alternatives.