OK, thanks for the details. However, I do think there is still a key importance: Ayn Rand was using her books to dispense a specific philosophy and this has be

OK, thanks for the details. However, I do think there is still a key importance: Ayn Rand was using her books to dispense a specific philosophy and this has been clear both by interviews given by Rand and by the content of at least one of her books (I've only read one). The books were a means to that end. In the case of Sherlock, this is a work of fiction and as far as I know, no specific philosophy is the framework of any of the Sherlock stories.