If it wasn't already seared on every ASX 200 director and executive's frontal lobe, it will be now after Westpac Banking Corp's humiliating settlement with the financial crimes regulator in a saga that unfolded publicly over 10 months, but originated years earlier.
Cultural failures are costly: ask Rio Tinto, Cleanaway, AMP and QBE. Even ones that some might argue don't reflect on competence in the core business – such as AMP, QBE and Cleanaway's various failures of senior management conduct towards subordinates – can cost CEOs their jobs and companies business and market value.