The world has never be so rich – at least financially. And so unsustainable – economically, socially and environmentally. In fact, we are all living a " nemesis of wealth" (nealth), caused by our shortsighted choices of the past, just focused on ROE, NPV and shareholders' value. This " nealth" is now paying us back not only with loads of public debt, inflationary money and debased cryptocurrencies; but also with unbearable social discrimination, geopolitical tensions and wars and de-globalization; and - last but not least - with the ticking bomb of the climate change to come. If this is the legacy of our " intergenerational arbitrage" (theft?), what is the future for the Gen Z and of the many a to come? How can they manage and overcome all these unbearable burdens to regain the lost sustainability? A new definition of wealth, based on a more holistic " total sustainability" , is then required; and, correspondingly, new models to design, manage and value a targeted wealth creation that is relevant to many stakeholders. Never has been the challenge of change for the wealth management industry so critical, urgent and of the utmost importance.