As Harvey Weinstein was to film, so Robert ‘R.’ Kelly has been to the music industry. An energetic and profligate figure who enjoyed enormous commercial and artistic success in his heyday, Kelly’s downfall, with his convictions on nine charges of sex trafficking and racketeering, is now total. It looks likely he will be given a life sentence for his crimes, and few, other than his most devoted admirers, will be mourning his entry into the penal system.