A paragon of the kind of people-powered progress that feels all the more necessary in divisive times, the Living Wage campaign , is celebrating its25th anniversary this year. Born out of Telco (The East London Citizens’ Organisation) , which ultimately became the nationwide group Citizens UK, the campaign has always involved communities working together, to press for social and economic change. A quarter of a century on from its foundation among the churches, mosques and community groups of east London, it has just signed up its latest living wage employer, the Department for Business and Trade. It is a particularly symbolic victory, because one of the campaign’s more high-profile actions over the years, back in 2012, involved contracted-out cleaners placing letters on the desks of senior ministers , outlining the low pay rates they were forced to survive on, while keeping Whitehall’s maze of offices spick and span.…