It's naive to think that any one form of human organization, be it governmental or corporate, is somehow less corruptible than another. You're right to be on your guard against governmental abuses, but don't take your eye off the other balls in play.

History is littered with great companies toppled by better ideas and execution.

What we've seen lately are instances where one company topples another and proceeds to commit the same abuses, only more effectively and at wider scale. When Facebook replaced MySpace, were its users really that much better off? Which company had fewer rules and enforced fewer content guidelines? When one company dominates the market and locks it up with network effects, what incentive does that leave them to play well with others?