Despite the USA's prominent role in shaping global sports cultures, which cultural element has demonstrated the weakest global influence?"

1) Connection to advertisement and commodification of sport as entertainment.
2) Attitudes toward the competition and the cult of celebrity (athletes).
3) Promoting mass sports participation for friendship rather than competition.
4) Training methods and moral and pedagogical issues.

3) Promoting mass sports participation for friendship rather than competition.

While the USA has certainly promoted mass sports participation, the emphasis has often been on competition and success rather than simply participating for the sake of friendship and enjoyment. This cultural element has not demonstrated as strong of a global influence compared to the other options listed.