I'm going to ask one more time ? why do people take notice of the odds ?
All this means is that more people are voting on Ashleigh winning the show. If 500 people were to bet on Helen winning you would see her odds on winning improve too.
They can't predict who is going to pick up the phone and vote you know.
Sophie, Gina and Dexter were all favourites throughout series 14 and they didn't win. Also the last 5 weeks of this series the odds have been wrong.