Did MapQuest change the world?
Did AltaVista or Yahoo!?
What about the thousand translation sites that exited before Google?
I'll tell you who is changing the world. SpaceX. It is led by a man who started it despite all odds. A man whose sole drive is to get humanity to Mars so that if something happens to Earth, it doesn't wipe out our entire species. A man who believes he has a mission, and believes in that mission so strongly that he is willing to invest every last penny of his personal fortune in it, and work himself to death to see it accomplished.
THAT is changing the world. Not being able to look at pictures of a street from your computer or find the translation of a spoken phrase accurately or make payments via your email - all the while being served shitty, mostly useless ads.
I'm sorry, I love Google and the convenience it provides, but at the end of the day, it is just an advertising company. And you cannot change the world with advertising.