Final answer:
Paul Polman is the CEO who continued Patrick Cescau's Unilever vision of merging financial success with positive social and environmental impact.
Step-by-step explanation:
The CEO who is building on Patrick Cescau's vision for Unilever of “doing well by doing good” is Paul Polman. This vision focuses on the idea that a company can achieve financial success while also positively impacting society and the environment. Polman was known for championing sustainable business practices and integrating them into Unilever's growth strategy, maintaining a strong commitment to social responsibility and environmental stewardship within the business model.