[T]he more the Big Data analytics companies know about you the more they will be able to manipulate you and control your life all for their benefit, not yours.
I disagree -- they don't want to control your life all for their benefit -- they want to sell the analytics to third parties who want to control your life, and they want to sell "access" to third parties to influence your perception of the online world.
This is actually part of the EU argument for the "right to be forgotten" -- and the only part I agree with; the big data analytics companies like Google are already serving up different results based on the user index -- if they're already doing this, then it's only one more step to say "these people are in the EU, and so shouldn't see these results at all (not just rank them lower like they already do).
This all started with Amazon back in the day, when they started showing different deals and adjusting ALL pricing based on your CI profile. Google eventually got in on that, and it now affects pretty much all of their products (even GMail will bubble up different emails based on what they think you'll want to pay most attention to). This could be considered beneficial, but it's naieve to think that you're the only one getting this benefit; it's being sold in reverse-aggregate form to others so that those who pay Google get finely honed access to the customers they think might want the services. Nothing wrong with that either, but I'd rather not take part unless I choose to (as opposed to being shown the altered world view as my default browsing experience).
As a result, I use Google Search now when I want something targeting me, and ddg/yahoo when I want to search for something specific, as Google's got really good at pushing what it thinks I'd prefer rather than what I want. It gets this data through GMail, Chrome, GoogDNS, GooglePlus, etc. I usually use Youtube as an indicator of how well they're tracking my current browser, and when things start to skew too much, I blow away all my cookies, flash bugs, etc. and renew my DHCP lease. Usually takes a couple of months.