^ Saw isn't a good ride in your opinion though.
It is a good IP. It made money. Doesn't matter whether you (one person on the internet) likes it or not. It did it's job. IPs are used to make money.
As for your poor music comment, again, it's your opinion. Music is a form of entertainment, and if a song reaches #1, it means people are being entertained and buying the song. And because it's making money, it's a "good song", even if it isn't to everyone's taste. Why do you think most artists even create music? It's passion, and money.
You might like metal music, I don't. That means for you, metal music is "good" because it entertains you. Whereas I hate it because it doesn't entertain me.