TIM MONTGOMERIE
© PJRTRAVEL / ALAMY STOCK PHOTO
It has been 40 years since Margaret Thatcher arrived in 10 Downing Street to begin her revolution. She unleashed an era of change—not just one-off events but a process of incessant, repeated convulsion that the Austrian economist Joseph Schumpeter called “creative destruction.” Her impact wasn’t just felt in Britain and in the many other nations that embraced her free market creed but within the Labour Party, too.