"Sod off"   Great! I now have a title for my book.

I actually would not need your permission to write a book about you. If the other individuals freely gave their permission to speak, they are not owed a dime either.

This is a complicated subject. A contract is a contract, and while "moral" issues may be present, there are also "ethical" questions.   

I'm not defending Bulmer, everything I have read about him makes him sound slimey. Still, I think there are other sides to the issue.