Because she's not meant to be a sex kitten

I'm never going to be a Stieg Larsson fan, but I was pleased to see that DC's Vertigo imprint will be handling the upcoming Girl With The Dragon Tattoo comic book adaptation, if for no other reason than I'm pretty sure most other big-name comics publishers would feel compelled to re-design Lisbeth Salander until she looked like a goth beer maiden.