I think the point is to show that even amongst their peers, people who love loud pipes are a minority that the majority would gladly see being stopped.
I agree now but I once was young and had a loud pipe on my truck and on my motorcycle (always with a catalytic converter though!), I think it's just a natural phase in the car person's evolution... Then you've got a bunch of Harley riders and Dodge Ram drivers that never grow past that phase...