There's a lot to be afraid of even if you don't believe that AGI is achieveable. For example, Google has openly talked about manipulating search results to stee

There's a lot to be afraid of even if you don't believe that AGI is achieveable. For example, Google has openly talked about manipulating search results to steer potential ISIS recruits away from ISIS. That's a power that they are using without oversight, and who's to say that they aren't doing similar things to influence the outcome of the US national election (they have a vested interest in seeing Hillary win - Hillary is much better for their bottom line than any other candidate). The giants are unparalleled in terms of their access to data, and that's something alternatives and competitors can't compete with. It's also clear that for machine learning, having more data is the most effective way to get better results. Stronger algorithms are only going to go so far if your competitor has three or four orders of magnitude more data and computational power. And that's the scale we are looking at with companies like Facebook and Google.