Mumbai:Actor Aamir Khan, who is playing a baddie in Dhoom 3, feels that changing moral values in society have blurred the line demarcating the good and evil on screen. After success of Dhoom(2004) and Dhoom 2(2006), there is already a buzz going around about the third edition of the series. In the upcoming installment of Dhoom factory, Aamir is playing a negative character opposite Katrina Kaif. "I think villains have moved out of our scenarios. We don't have any villains anymore in our scripts by and large. It's more of a social thing. At one time our society had a clear moral view. So those people were the villains in our stories too. Mill owners were the villains," Aamir told PTI.