As the worlds wealthiest people gather in Davos, Mark Ruffalo, Brian Eno and Brian Cox have signed a letter calling for higher taxes on the super-rich, Helen Coffey reports on how ‘wealth shame’ can be a powerful motivator for those at the top to take accountability and try to make amends F eeling shame is a normal human emotion. And it’s the right emotion.” Julia Davies is talking about one potential response to being incredibly rich . It might seem surprising that she, of all people, should