how Dove’s PR campaign on beauty and self-esteem is effective.

Dove has continued its social media public relations (PR) campaign on beauty and self-esteem. In 2014, Meaghan Ramsey presented “Why Thinking You’re Ugly is Bad for You” at a TED Talks event.
In the TED Talk presentation, Ramsey does not mention Dove. Without focusing on the organization in the speech, why would this be a good PR event for Dove? What does it achieve for the organization? Why do you think Ramsey, who is the Global Director of the Dove Self-Esteem Project, chose this way to communicate with Dove’s customers (and potential customers)? What are the advantages? What are the disadvantages?