This was one of the downfalls that I saw in regards to the D800.
With that high of a megapixel count, you WILL get astonishing details.
HOWEVER, women will most likely end up not liking/hating the photo. The level of detail is so high that when inspected closely, you can see every single hair, every single wrinkle, every single blemish, any tiny makeup blemishes--all will be visible. Every single "flaw" will be apparent.
So each photo you take of them will have to be heavily processed. The processing is going to take up a LOT of your time. Plus, if you're not careful or an expert, the photos will look over-processed. By this, I mean when people touch up the skin it ends up looking too blemish-free and thus fake.
I think you are missing the point. With D800, if you don't want details given its processing requirements, you can always use cheap lens or even defocus lens to get the soft look. But its real power is when you DO want details. The detail is there IF you need it. If not, there are many non-pp ways to soften the images, like crappy lenses, cheap uv filters, and even mayonnaise like the olden days of dreamy portraits!