That Google pretty much remains a one-trick pony after billions of dollars thrown against the wall speaks volumes about the glorification of "success" (or misattribution thereof) and the value of all the hagiographies in its wake.
I wouldn't call Google a one-trick pony. They've created a bunch of wildly successful products -- Search, Maps, Android, Chrome -- that help feed their ad business.
What should be scary if you're at the top of the company is that Google has not had a home-run product in a very long time. It's a strong signal that wherever made Google special in the past is gone (though that doesn't mean it couldn't come back).