How can you misuse yourself? Are you in normal circumstances using yourself, so that it's possible for you to misuse yourself?
If I spend 8-10hours a day or even more and also spend a lot of money just because of the game the I consider as misuse my self, and only myself can stop this.
If spending 8 hours a day at work and 4 hours a day watching TV and playing computer games is ok by the rules of our society, what happens if a gamer plays and works for 12 hours a day combining both activities?
If you still works and play games only when it's free then that's normal.
Most activities allow us to earn money and that makes it a job. If you spend a lot of time playing but it brings you money, where does leisure end and a work begin?
But how many of them eventually become games as a means to get money?, and if the games have given money it become a different story