Considering it's a show where candidates hope to make lots of money from their own businesses with many claiming to 'av star'ed wiv nuffink', I think Katie is a great example of someone who has done just that.
She plays the media like no other person, turned herself into a successful brand, competes in an expensive sport that she enjoys and certainly doesn't crumble at openly hostile criticism. Nope, she just carries on making millions.
I don't like what she does, but I do admire her tenacity and ability to make money.