Myria, you sound like a person who's never played sports.

I'm not saying we need sports MMOs, but they're clear examples of how you can have competition without combat. Hell, the article cites plenty of other evidence. Racing, mystery solving, puzzles, action platforming... stuff that happens to be in many video game genres, just suspiciously absent from MMOs.

If you think life is so mundane such that you need video games to fill some pent up violence quotient, that's your own issue. Go climb a mountain or something.