The Gang from It's Always Sunny in Philadelphia have always been a bad influence on each other. They instigate one another and, in turn, make a mess of the things and people around them. Some characters, such as Schmitty, Ben the Soldier and Carmen are incorruptible despite the chaos of the Gang; however, others aren't so lucky.
Source：https://www.cbr.com/always-sunny-gang-corrupted-characters/
