It may surprise some that a year on Jade still continues to be high-profile. Many expected her to fade rapidly into relative obscurity after the initial burst of publicity, like say Helen, but she hasn't and there's little sign that she will anytime soon.
I think there comes a point where someone reaches a critical level of impingement in the public consciousness, that they remain there permanently (or at least for a long time to come), and IMO Jade has probably reached that point.
Eg. the term 'jadeism' to mean an amusingly daft ignorant remark, has entered the popular lexicon (I wouldn't be surprised to see it included in future dictionaries);
her tv exposure is not from presenting programmes, but rather having programmes made about her (a sign of real stardom?)...... three already and a fourth one coming soon, conveniently timed to steal the limelight in the period immediately post-BB4.
Perhaps one can compare her to Jordan -- eg. both household names for reasons of notoriety, both creatures of the tabloids, both able to sustain their public spotlight simply because of who they are/what they represent and their place in the national psyche.
ps. Mesos might disagree with all this, but he's very welcome to.