In our storybook world, royalty open hospitals with their shiny-haired brides, rather than stomping in muddy wellingtons over democracy.

The true purpose of the British monarchy, as the late Douglas Adams might have put it, is not to wield power, but to distract attention away from it. We can be curiously coy about the way privilege works in this country: consider, if you will, the horrified reaction to the news that Prince Charles has been allowed to dabble in the affairs of government.

Parliamentary loopholes have meant that the unelected heir to the throne has been granted power of veto over matters that affect the private interests of the Duchy of Cornwall, including road safety, planning and environmental policy. We are shocked by the reminder that the royal family is more than a tinselly relic to bring in the tourists: it actually has political influence and some of its members are uncouth enough to use it.

While all of this has been going on, there has barely been a day when the young Duke and Duchess of Cornwall have been absent from the front pages. It's as if the loveliness of the Duchess, wafting in designer gowns around various official engagements with her subtly balding beau and the international media in tow, were enough to distract the world from a nation creaking with corruption and civic breakdown.

In Britain, we are comfortable with the trappings of power as long as they are phrased in the manner of a fairy tale. At the end of last month, changes to the royal succession were made, to much fanfare, to ensure that female firstborn will be able to inherit the throne. "Put simply, if the Duke and Duchess of Cambridge were to have a little girl, that girl would one day be our queen," said David Cameron, with all the political gravitas of an episode of Jackanory. This "modernisation", which, like most recently hailed feminist triumphs, makes cosmetic alterations to the existing system while ensuring that nothing of relevance changes, is as clear a message as any that the House of Windsor intends to squat in its position of privilege for many generations to come.

Giving it welly

The real story of power and privilege in Britain is far murkier than the Disney-princess version peddled by the tabloids. In this storybook world, royalty open hospitals with their shiny-haired brides, rather than stomping in muddy, expensive wellingtons over the democratic process.

It is worth noting, in these circumstances, that the word "privilege" actually means "private law". It means that wealthy or aristocratic influences are allowed to bend the rules to suit their own interests - and this goes on all the time behind the closed doors of Whitehall, not just with the Windsors. Documents leaked to Private Eye showed that the permanent secretary to HM Revenue and Customs personally shook hands on a deal that let off the investment bank Goldman Sachs £10m in unpaid interest on a failed tax-avoidance scheme.

The Ministry of Defence is only just staggering away from a scandal in which it emerged, among other things, that a lobbyist who had paid a reported £20,000 in expenses to Liam Fox's aide was granted face-time with the arms sales minister. Time and again, private law trumps the public interest, yet we allow ourselves to be distracted by a fairy tale of functioning democracy.

This is no time for sugarplum politics. Behind every modern fairy tale is an ancient fable of thuggery, hierarchy and blood, and the story of modern Britain is no different.