It is a known, and lamented, fact that the rivalry between the Princess of Wales and the Duchess of Sussex has led to a series of incidents of one-up(wo)manship. It is surely no coincidence that in the midst of the Harry and Meghan brouhaha on Netflix, the princess was photographed looking suitably radiant and selfless, helping out with good causes and generally being a credit to the royals, rather than a thorn in their side.