"It was important to me. I was struggling with myself. The choice was between doing the right thing and not wanting to let my colleagues down," he said at the time.
Gibbs was given days to pack up his office and clear out, although he remains chairman of both insurance company Tower and Turners & Growers, which GPG has large stakes in.
It was a catalyst for change at GPG. Sir Ron paid a visit to New Zealand to talk to fund managers and shareholder representatives about their concerns. The result has been the appointment of four new independent directors to the board - three New Zealand-based.
For the first time in the firm's 20-plus years the board has more independent directors than share-owning executive directors.
With more free time, Gibbs has become the inaugural patron of the Howard League for Penal Reform. League president Peter Williams said he was a tireless campaigner for the principles and causes in which he believes.
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