David Cronenberg thought of it 9 years ago in the movie Existenz.
In the background plot, so many people play very real looking virtual games, that society itself is impacted (”What? Nobody actually goes skiing anymore..”).
The characters in the movie have played so many ultra-real games they can no longer tell when they are in “reality”.
Second Life is a timesucker, second only to World Of Warcraft, another game that has resulted in divorce and even assaults in meatworld encounters.
Well, these are people who got married after meeting in a chat room. What did you expect?