It seems like it's not an easy task - to control, analyze and store such a volume of data. So not necessarily someone has an eye on you.
At the same time lots of people are bothered by it, but if so, maybe they should choose what they're using and do it more consciously?
Because even the internet itself is giving a lot of benefits, but also a possibilities for scam and fraud. So you just need to be aware and able to protect yourself where it's nesessary.
I guess the blockchain is a logical and safest choise for that - we have nothing better than this for the moment, and yet it's a very beginning.