Paul Farquhar
Legend
This is largely because the games you are thinking of are full of adolescent males.Small people are rarer, and get played a lot less - you can see this very easily in video games. Even where the stats of characters make almost no difference or there's actually no stat-size linkage in a game, the small races are nowhere near as popular as the big bruisers. And the most popular races always, without fail, the humans and elves (and things in that general zone). Devil-people are also typically pretty popular, and a lot more popular than the small guys.
The last MMO I played I was a 4 foot tall robot.
As previously mentioned I played a half ogre - when I was an adolescent male...