Peter Mandelson’s famous quote about New Labour being intensely relaxed about people getting filthy rich has a suffix that is often mischievously omitted: he added ‘so long as they pay their taxes’.

But there are a few more things which many Labour members would have put on the end: so long as you don’t earn it by advising Central Asian dictatorships, so long as you don’t hang around with Russian oligarchs, so long as you don’t make it from the Saudis.