I find this to be the most disturbing part. I have done a substantial amount of game development myself on the side, it's how I got into programming originally ~15 years ago. I say that because I find it demotivating sometimes to work on games that I think are fun and non-addictive. My wife will show me some simple addictive game on the phone and ask why I can't just make a knock-off version of that... I could, but at what cost?
Some part of me really wishes that "gambling" in games would finally get cracked down on to level the playing field for the rest of us.
I now have a 5 month old son and that has really amplified my thinking of the future. I will of course educate my children on the dangers of addictive games, etc. but what about others? It's sad, but also classic "think of the children!"