Imagine rising to the ranks of prime minister of one of the most influential countries ever and for your legacy to be a head of lettuce out-survived your reign. That the Queen literally died the day after meeting you. Unbelievable.
This lady was for turning. Unfortunately, if you want to shake things up and introduce even moderately radical policies, you better have the stamina and political will and skill to push them through and keep at it. Britain's first female prime minister had that. The third one didn't...
not bankrupting your country also helps.