It’s pretty simple. When people make money doing something, more money enters that system. And it is pretty simple in the reverse: when some people make a bucketload and those that invested in it make virtually nothing, less money flows into the system.
If distributors don’t pay creators their fair share of the profits, their won’t be movies made. Or maybe the investors will get wise and stop selling the distributors the film. After all we are at a time that you can really do it yourself (by doing it with others). And to be clear, “fair share” doesn’t mean paying them what contract swindles them out of — it means paying them an ethical cut. And that sure in hell ain’t 12.8% of the profits — which is what happened on one of the most successful indie films of recent times.