I'm not saying you're wrong and I agree that these companies will use the info for their personal gain.
But I do have a question for anyone watching: why are Americans so paranoid about falling under a authoritarian regime? Europeans aren't as afraid of it and every European country has at one point or another been ruled by a dictator. The US has never been yet the vast majority of comments by Americans seems to indicate a deep distrust of their own government, to the point where half the country would almost get rid of it (Republicans).
There's a very thick line between a slightly abusive and malfunctioning government and full blown dictatorship. And that line is not that easy to cross as it may seem if the country's citizens don't want it. Heck, my country, Romania, who had a very fragile democracy across the years, only succumbed to dictatorship under massive external pressure - including military pressure - from the Nazis and the Communists.
If little ol' Romania, with a very uneducated populace yet willing to fight for its democracy sort of held on for 100 years out of the 160 since its formation, surely the US would be more resilient, without half its citizens becoming paranoid?
(end-of-rant)