Peter Quintana talks to David Macdonald, founder of Path Financial, a wealth management firm that only invests client money in funds committed to positive impact. In a wide-ranging and inspirational conversation, David talks about the moment he realised he could no longer continue what he was doing and remain true to his values, how the Path is firmly focused on doing good for the planet and earthlings, his thoughts about the future of impact investment, and the problem that is green-washing.