Well the simple answer is, people who spend most of their time playing video games are:
1. Not the smartest people 2. Not the best educated people 3. Not the most motivated in life 4. Not the most socially aware 5. Not interested in getting ahead and improving their life 6. Not people who generally fit in with society 7. You are dealing with a class of people who like Jersey Shore
and the list goes on
I know they will not agree, but you don't see people getting a good education at Harvard wasting their time on video games.
You don't see people busy making money and getting ahead in life wasting their time on video games.
You don't see people who live in the real world, interacting with real people wasting their time with video games