No (classic) Mario?
No Sonic?
No Quake? (or even Wolfenstein 3D)
What about Tamagochi?
Damn, even Street Fighter made a way bigger impact than many of the games in that list.
No idea why FarmVille is on that list, it was just a trend i got to know from the 2 or 3 social network freaks in the class.
Same thing with WiiSports, it was just included with the console... it wasn't really that great or anything unless you managed to get a few friends over.
Also Halo did have huge impact in the US, but that wasn't the case in a lot of other countries and continents so I'm not sure if that counts as a game the changed the *world*.