Normal people? Who would you define as normal, exactly? Sounds like you're talking from a pretty self proclaimed point of view. And why are we bringing societal views in to this? Video games on a whole have always been controversial, and yet here we are debating on a video game forum. Like, seriously?
Not to mention that a large foundation of video games are built on accomplishment. You say people play games as a 'past time', but what the hell does that even mean? People play video games for enjoyment, and enjoyment is achieved through different means depending on the audience the game targets and the sense of enjoyment the player is seeking. Video games for a long, long, long time have vastly catered to the idea of giving the player a sense of achievement and accomplishment through trial and tribulation, and overcoming obstacles. That's what Mario was about. That's what Sonic was about. That's what Donkey Kong was about. They were all about getting to the next level of the game, as with all platformers. Even with games that are more about alternative aspects, such as story telling in RPG games like Final Fantasy, or the Tales of series, they all have intrinsic aspects of levels of achievement, like a leveling system, or item rewards. ****, XBox Live and PS Network have an achievement and trophy system to provide even further incentive to the player.
The most popularly played PC game in the world derives its playerbase through competitive achievement. World of Warcraft does this through materialistic achievement.
This is very, very, very easy to see. I don't even know why I'm having to argue about this.