In the Simpsons Tapped Out, your Springfield is rated according to a number of factors, which come together to give you an overall rating. The higher your rating the bigger the bonus every time you complete a task or collect rent.

Now, some of these are very easy to work out. The more trees, shrubs and other decorations you have, the higher your vanity rating is. If you build more restaurants, you raise your gluttony rating. And if you wasn’t to boost your consumerism rating, build more shops.

The category that seems to fluctuate the most is righteousness and it seems to rise and drop for no reason. However, if you have a lot of graffiti or you graffiti your friends’ towns, it seems to drop. If you clean up graffiti in your own Springfield and those of your friends, it seems to rise (after a lag). There is also a suggestion that having Mayor Quimby, Fat Tony, Officer Wiggum and Snake all repeatedly carry out corrupt or criminal tasks can make your righteousness rating drop, too.

So, if you want to keep your righteousness rating up, clean up graffiti, send Snake to jail, and make sure the others avoid taking bribes.