The biggest Brexit donor was the stockbroker Peter Hargreaves. He gave £3.2m to the leave campaign. He justified his enthusiasm as follows: “We will get out there and we will become incredibly successful because we will be insecure again. And insecurity is fantastic.” If you are wondering, “Fantastic for whom?”, the current television ad for the company he co-founded, Hargreaves Lansdown, could supply an answer. It presents itself as a safe haven in times of disruptive change. Among the examples it provides? Brexit.Perhaps our most poignant political folk tale is the notion of accountability. Those who hurt and undermine us...