That's the difference between the mean and the median. The median profit for a game is probably much closer to your number, but the mean is the average of all the games like yours (there are many) plus the rare game that makes $10 million or more.
The median income for game in the app store was less than $1000 in 2011. I'm sure it has came down since.
I guess mean and median happen to be very different in this case.
Angry birds made millions. If you average it out, you might get thousands. But yeah, knowing the average does not really give you all that much insight.
i recall reading something a couple years ago that ~800,000 apps on the store have zero downloads.