He won the lottery. He didn't develop something meaningful. That must be rough. Imagine if you hacked together a "hello world" program, and it made you a millionaire. Wouldn't that kinda suck?
Intentionally or not, he made something that most millions of people enjoy, to me that seems to be a pretty good accomplishment.
Look at lottery winners. I would certainly not want to win the lottery, because most winners end up having a terrible life.
Also, lots of people enjoy shooting things, but being the inventor of the gun must have been a pretty heavy burden. Just because something is enjoyable, doesn't necessarily mean it's "good" overall...