The speaker highlights the importance of preserving cultural heritage, particularly for ethnic minorities like the Cham community in Vietnam. Many young people in these communities struggle to read or write in their native languages, and traditional arts are fading. The speaker suggests that social media influencers, or Key Opinion Leaders (KOLs), can play a significant role in cultural preservation by promoting cultural exchange and highlighting traditions and festivals. For example, travel bloggers can share lesser-known cultural stories and experiences with a global audience, making them more accessible and interesting. Additionally, influencers can help preserve languages by creating content that encourages their use and adaptation. The speaker provides examples of how influencers have successfully promoted cultural heritage. A travel blogger named Quan showcased a festival in a Cham village on YouTube, which generated interest from international audiences. Another example is a program by the Misan Sanctuary management board that invited influencers to promote a UNESCO World Heritage site and green tourism in Vietnam. These efforts demonstrate how influencers can effectively engage younger audiences and make cultural heritage more relatable and accessible. The speaker also warns of the potential negative impact of misinformation spread by influencers, emphasizing the need for responsible content creation.