This isn't anything new. Neither is the near-sighted, blinkered opinion that we and the Yanks are a neo-Arthurian hegemony, ridding the world of injustice and bringing hope and humanity to downtrodden peasants everywhere. It's why the claim that we went into Iraq to 'free the people' is so laughable.
We couldn't give a shreck about human rights; the British economy is strongly based on selling modern weapons to rich governments of questionable standing. In this case, a bankrupt BAe Systems from non-payment of Saudi orders is unthinkable. It would be a disaster for the prevailing government.