Because, it is a fine line between investigative journalism and intruding in people’s privacy, particularly at a low point in their lives when they’d tragically just lost someone dear to them. Now that is both criminal and inhumane.
It speaks to the overpowering ambition of some people/organizations where getting the story and the “supposed” kudos for being the first to reveal all, takes over from decent, human behaviour. I wonder if the journalists involved ever questioned themselves, or chose to ignore their gut feeling that what they were doing was wrong. To them, the means justified the end result.
In business we also face decisions about which path to take to realize our goals. My advice, listen to your gut. Don’t do something where someone will get hurt, because at the end of the day, the person most damaged will be yourself and your reputation, and that can be hard to repair.