I believe the desire for more is good when it is controlled. The desire for more keeps us moving forward. Always progressing to bigger and better things.
When that desire consumes you, when you only think about being better than, fill in the blank, that is when it becomes a serious issue.
The controlling desire manifested itself in several different ways in my life. One such way was my hyper competitiveness. It didn’t matter the activity I had to win. If I didn’t win, I was a sore loser. Arguments with my wife ended with me “winning” or me pouting.
They often still do to this day. Remember I’m a work in progress.