In the same way that we shouldn't condemn the employees of <INSERT TECH COMPANY> because senior leaders decided to <Censor/Abuse/Manipulate users> we shouldn't condemn otherwise ethical accountants because of the misdeeds of their colleagues - especially when they pass more stringent ethical requirements than developers.
Ironically, people couldn't differentiate the isolated incident, and AA liquidated/sold because no one wanted to do business with them. [0]
[0] en.wikipedia.org/wiki/Arthur_Andersen#Demise