I was in the UK when this exhibition was touring and remember a poll of people who has visited the exhibition in which they said that they would take more care of their body after seeing the exhibits ( in much the same way that (you'd hope) the Australian anti-smoking adverts which feature , among other things, a dissected brain with a blod clot turn people off smoking.
I have to spend a fair bit of time in a room filled with potted specimens ( body bits in jars ) ( in two weeks we'll be going to watch a dissection), so perhaps it doesn't bother me as much as other folk . After the initial shock, you do become a little bit desensitised and apathetic.
There is a major shortage of cadavers required for teaching purposes, at least in Australia. Many people are understandably squeamish about donating their bodies. While it doesn't seem as immediately important as donating organs, in the long run it is because it affects the quality of the doctors being trained.
NOt trying to convert anybody, just adding my thoughts.