First attempt at trying to define my meaning of Meta Organism

This is only a first attempt, and it's not good enough, but I've gotta start somewhere:

When I speak of a Meta Organism, I'm talking about an ongoing human-related phenomenon, which has the following characteristics:

1. It involves several people
   
2. It affects their behavior or thoughts.
3. People feel like they "belong" to this phenomenon. (is 'belong' the right word here?)
   
4. It changes over time, but it is continuously recognized by people as the same.
   
5. The phenomenon is independent of any one specific participant (i.e., if any one of the participants were to leave, the process would continue almost unchanged).

Let's see how this works with the Meta Organism "audience wave in a football stadium":

1. Obviously, it involves quite a few people
2. It certainly affects their behavior (people keep getting up and down)
3. People consciously participate in the wave, and they know they are part of it.
   
4. The wave seems like one entity, even though it keeps moving across people.
5. People in the audience can come and go, but the wave would continue. It is not dependent on any single person.

And let's see how this works with "Country":

1. Again - many people.
2. People are certainly affected by countries. People who grow up in a country adopt its language, manners, etc.
3. People who live in a country "belong" to it (as citizens or residents)
   
4. A country has an identity: name, symbols, borders. Any of them can change, but as long as they don't change simultaneously, the country is recognized by people as the same.
5. Countries can outlive people by centuries, so obviously their existence doesn't depend on any single person (not even the president).

I'm not sure the definition is good enough:

• Are there things which I don't think are Meta Organisms but who still
  answer this definition?
• What makes this an "organism" rather than just an organization or system?