Imagine hiring an artist to view a series of photographs of a famous celebrity or corporate executive - John doe, for example - then create an original drawing - not a derivative, but a unique work of art that's legal.
Now imagine selling some of your artwork on a website. Maybe you have a separate web page with the heading "Pictures of John Doe," featuring half a dozen pictures the artist created for you.
Again, each individual image is legal; you can personally use them on your website or in a book. I assume it would also be legal to allow others to use them free of charge; you could put them in the public domain or license them under Creative Commons, for example.
But can you legally charge a fee for such pictures?