There's more to this than meets the eye.
I'm not going to comment on the jail sentence which, as some commenter has already said, seems unduly harsh, but more about what this reveals about the prevailing ethos at the BBC.
It reveals just how immoral and seedy the BBC truly has become as an organisation. Once upon a time, "Auntie" held itself up as a paragon of virtue and high standards. What we now know - as evidenced by the employment of overpaid juvenile presenters who make dirty phone calls on air and the evidence of this case - is that the BBC is a cess pit of bed-hopping, cheating immorality.
In essence, the BBC is a microcosm of progressive liberalism and indicative of society in general under progressive liberalism - a showy surface of respectability underneath which lurks a filthy rotten body.