In 1995, the Britpop band Pulp had a hit with “Common People.” The song satirised the elite’s longing to be ordinary, describing a love affair between the group’s frontman Jarvis Cocker and a fellow art-school student from a posh background. “You wanna live like common people. You wanna see whatever common people see, wanna sleep with common people, You wanna sleep with common people … Like me.”The British are wedded to the idea...