A company "being" a monopoly and being in a position to "act" as a monopoly are two totally different things.
Neither Google nor Microsoft were a monopoly through their simply existence - they have both achieved dominance in their respective sectors. Despite what the nay-sayers on here would have everyone believe, Internet Explorer was NOT the only browser available for Windows. Nor is Google the only search engine available to users. You can choose - you have the power to.
But what happens now? Google have 90% of the market - so what do they DO with all of that share? Do they have a responsibility to "the world"?
Many would argue Microsoft had (right or wrongly) shoe-horned their operating system on to 90% of the world's computers - how is this different to Google's Android? Stack 'em high and sell 'em cheap- net result = your product on every device. And now that your product is running on every device, what a perfect opportunity to push all of the other products too. We've all witnessed the recent "Google +"-ification of YouTube and the resulting backlash from users - this is typical Google, and it's typical Microsoft to foist their products on to their Windows customers all those years ago. Buy Windows and get Internet Explorer at no extra cost! Ok, so they didn't word it like that, but that was the intention. So much so that they couldn't be separated from each other once installed.
So now we have Google pushing out their products and services on Android devices (albeit with a bit of skinning allowed from the suppliers like Samsung and HTC) - can you uninstall Google Search from an Android device?
No - because they're the *same thing* - just like IE and Windows were.