Newton was a remixer, too. Among many other more significant things, we also remember him for the following quote.

“If I have seen farther it is by standing on the shoulders of giants.”
-in a letter to Robert Hooke (15 February 1676)

But even the comment, too, was a recirculated remix:
http://en.wikipedia.org/wiki/Standing_on_the_shoulders_of_giants

So:
1) the benefits can accrue to the remixer who popularizes the idea
2) benefits can accrue to the idea itself, which can be circulated through a wider audience and thus be engaged with, allowed to evolve, etc.
3) benefits can accrue to the wider audience, who are exposed to the idea as a result of the remixer’s efforts/articulation
4) benefits can accrue to the originators (the giants) who may understand/support more deeply, but can gain satisfaction from supporting/pushing things forward.