I suppose Widdecombe was a (junior) cabinet member back in the 90s, and then a shadow front-bencher. Lots of other people held similar or higher roles, it's true, but there is a narrative there, in her journey from the right-wing of the Tories to the complete insanity of today.
As for Farage, I have no answers as to why he's been given so much oxygen by the media, especially the BBC, for twenty years or so.