I agree with you here. I think the line between villain and hero is way too polar. Bad people do good things. Good people do bad things. Eventually when you've seen a certain amount of life you see most people's decisions and beliefs are determined by their life experience. Therefore there isn't really good and bad in the world. Most of the world is various shades of grey.
Furthermore, supposedly good people tend to have the darkest shadows. Think the catholic church.
However this doesn't fit with how the majority of people want to see themselves. So Hollywood has to use these damp squib plots of good vs. bad. Where I, like you, cheer on the villain.
I think thats why stories with more complex character development are gaining traction in the market - people are tired of the simple Clark Kent who is good because he is good - audience members want real people - and in the real world you can find yourself as the villain if your not careful - nor is being a villain as simple as 'being rich' or 'being selfish' just as good is not as simple as 'being in the right place at the right time' and 'standing up for the weak and the downtrodden' - think about those who made this site - I bet they're real heroes, but there were probably times when they were tested, and failed
by the way you can find more villainous reads over at @escapehatch
-I just posted this article: https://steemit.com/life/@escapehatch/film-i-m-producing-will-challenge-political-correctness