It is my opinion that Olivia-Newton John's environmental activism is more important overall than her acting and singing careers. Her contributions to environmental activism will have a longer lasting and more tangible affect on the world than her films or songs will. By being a famous celebrity and an environmental activist she encourages others to follow suit.
The reason Olivia Newton-John's environmental activism is more important than her acting and singing careers is because of the fact that she has this fame and money and is putting it toward something more important than herself. In fact, she's putting it toward something that benefits all of mankind, which is noble.
Yes, Olivia Newton-John's environmental activism is more important that her acting career. She hasn't done any real acting or singing in a long time and now she is mostly known for her activism. She does good things around the world to help people live in a world that is safe, and she should keep up that good work.
Olivia Newton-John only gets to be a known activist for the environment because she is a well-known name, and that only happened because she is famous from her acting and singing careers. Without those, no one would know who she is, much less care what she thinks about how humanity treats the Earth
I do not believe Olivia Newton-John's environmental activism is more important than her acting and singing careers. Olivia Newton-John has done relatively little work in her role as an activist and she has spent just as much time supporting cancer initiatives. She has also continued to work during these activities as well.