Trying to make the introduction flow better

I just spent way too long struggling to make the Introduction flow better. The challenge is that the last paragraph is, at its core, a paragraph about why most of our recommendations are beneficial for the individual collecting the data as well. This isn't really a good jumping off point for the rest of the ms. Since we all like the idea of having this material in the Intro (preventing us from just dropping most of the last paragraph) I've tried to make it flow better while holding on to the current material. I'm not at all sure that I have succeeded, so let's have a discussion about what I've tried before any merging occurs.