Within a business, whose responsibility is it to promote ethics?

In the $$Why Project Ethics Matter$$ article, the author suggests that employees have a responsibility to hold each other accountable for ethics. Explain why you agree or disagree with that statement.

In the report examining changes within Volkswagen $($as discussed in the New York Times article dated August $27,2018),$ it is reported that one of the continuing areas of concern is the creation of an adequate whistleblower program$$a program to speak up when an employee observes improper conduct. How effective do you think this type of program would be in a company like Volkswagen where cheating to make a profit was apparently encouraged? Explain whether you believe that the creation of a whistleblower program would change ethics within a company.