One of the most underrated forces acting on the geopolitical landscape of the world generally, and acting in support of American power specifically, over the last 50 years, is Hollywood movies.
They articulate, justify and/or glorify American values and narratives. Even when they're critical of America, American actions or American Narratives, they demonstrates a sense of self-reflection, freedom of expression and honesty in the face of often tragic missteps or flaws.
It's ironic that the far right hates the "hollywood liberal elites".
This kind of soft power has been unmatched in human history and is likely far, far more responsible for American leadership/influence than most people are aware.