Well, the Ripper was going about Whitechapel in the 1880s - about the same time as Mrs. Dyer was going about her nefarious activities - and Dodgson's "Alice in Wonderland" was published in the 1860s. Twenty years difference and another world away.

What's wrong with discussing Charles Dodgson's life and character, and why should the Ripper (whose life and times have been equally done to death - pun intended) be more important?

All that the Ripper has left us with is a flourishing and rather sick industry centered around his identity and a prurient fascination with murder and prostitution. Dodgson, whatever his psyche might have been, at least gave us interesting and complex works of fantasy which have delighted generations of children and adults the world over. Not at all precious in my view.