I would not say it has 'too much' power, however, Google has power no matter what one says.

I)Google has acquired over 100 companies in its short history including YouTube, Motorolla, ad, network, and design website. Not to mention all the high-term contracts that Google has with Apple, Facebook, Windows, and most 'G' cell-phone networks to name a few. With these mergers, acquisitions, and high-term partnerships, yes, Google does have a sh*t load of power; most search engines, are run through google. The technology of these engines are shared with other engines that are probably on your piece of technology.

II) Weither you "choose" to sign up for a Google account or not, you private life is affected. Google maps, googles search engine, googles stats, google instruments and tools in general are more than enough to find you, your family, your place of business, if one really wanted to get hold of that information.

III) This being said, if Google's economy where to ever collapse your priviate life would collapse. It would be the equivalent to a very large country collapsing.

These are just some of the argument against the opposing view point. However, I do not think Google is a bad thing, it has improved life, technologically speaking, time and time again. I will not go into the nearly infinite reasons why, I will just say the pros most likely outweigh the cons.