Discussion #3- Does Morality Belong in Business?

As you can imagine, there is an open question about morality in business ethics. Before you enter this discussion, have a look at this brief article from 

So does morality matter in business and whos morality is relevant or central to the business decision being made?
What do you think about this? 
Is there an overall moral code that should guide business decisions? And what might that code look like?
And do you think they would have prevented the things mentioned in the documentaries?