I think it mean that "as humanity we harvest..." and decided to disavow personal responsibility. The "We" comes from the fact that we all "benefit" from the organs potentially, because they are in the pool. We don't know where they come from.

Well he is part of Hollywood, and Hollywood is a big piece of it. So maybe not directly, but indirectly.

In that way, we are too, because for so long we bought into Hollywood's products.