In my opinion, this is the most dangerous aspect of games, though - they can fulfill that feeling of achievement that would otherwise belong to creative work, and satiate the need for that kind of work. The problem is that the achievements aren't helpful in the same way that eg building a company/invention/coffee table are.

I say this as a lifelong game player, and it's not to discount their positive effects - I think I'm a much better strategist and planner as a result of playing games as a kid.