While it's possible all the social media heads all secretly believe their product is evil, the real answer to why they don't use it appears answered by the mention that Mark Zuckerburg needs a team of 12 moderators to keep his page clean.

A lot of these people make use of a social network internal to their company.

> Sean Parker, the founding president of Facebook, broke the omertà in October last year, telling a conference in Philadelphia that he was “something of a conscientious objector” to social media.

I wonder if this reversal in his conscience has also compelled him to return the fat stacks of cash he made with Facebook.

He's my friend on FB. Although, he rarely posts...