With Great Power...

Via Guardian

Sometimes, a journalist needs to bend the rules and skirt on the edge of morality to get to the bottom of a story.  This is fine when used to expose a wrong, such as government corruption or a crime, but not fine when used to expose someone's private life or black mail an individual.

I think this is thing that editors and newspaper owners fear, that a blanket ban on such practices will restrict "good journalism" and well as curtaining "bad journalism".

An ideal world would only have "good journalism", but it's probably preferable to have good and bad rather than restricted.

Guardian journalist Nick Davis at the Leveson Inquiry:
http://www.bbc.co.uk/news/uk-15937661