My late father was at the opposite end of the Civil Service hierarchy to Sir Mark Sedwell. He never rose above the humble rank of Clerical Officer. However, one of his claims to fame was being (as a “Paper Keeper”) one of a small team of a dozen or so in 1940s Newcastle, who in the early stages of the implementation of the Beveridge Report started the Central Office of what became the Ministry of Pensions and National Insurance – always known on Tyneside simply as “the Ministry”. This went through various mutations (DHSS, etc.).
A phrase which my father explained to me at a tender age was “the ethos of the service”. It affected the way he did his job in the office including, for example, how you dealt fairly with members of the public however difficult they might be, or how much effort was required to ensure that traveller family got their payments despite unpredictable movements. It also occasionally found its way home. If there were amendments to regulations that needed inserting (a laborious scissors and paste job), or if there was a fraud case (literally tied up with red tape!) that needed to be dealt with very urgently, he was liable to stuff the papers into his saddlebag before cycling home for tea.