I have to admit I don't really follow the Royals. They're privileged individuals who act as tourist attractions. I don't have an opinion of whether that contribution justifies the expense.
I understand Harry's feelings about the press and the desire not to be a part of it any more.
However, I am interested in business, PR and marketing. It seems their plan to be financially self sufficient centres around exploiting the Royal Brand and effectively making a living as "celebrities". Is the Royal Brand really so valuable that it can work without support from the Tabloid press?