I don't think winning in a game has to involve "feeling superior". Many games of chance are also fun. In other cases, somebody might actually be superior (the better player). Then what - nobody should be better than anybody else in anything? Maybe the "loser" can try to become better, for example.

And it can also train emotional intelligence to win or lose gracefully in games, and try again.

What will your kids do when they encounter somebody who "feels superior" later in life? Like an actual superior, perhaps?