This reminds me of an email I was sending to a friend named Ouma; as I was doing the final spell check, one of the alternatives offered to his name was Osama (as in bin Laden).
Purity and simplicity... and ubuntu.
If you are neutral in situations of injustice, you have chosen the side of the oppressor. If an elephant has its foot on the tail of a mouse and you say that you are neutral, the mouse will not appreciate your neutrality. - Bishop Desmond Tutu
You should allow access to the cumulative results for those who've completed the survey. If someone takes the time out to do a lengthy survey with a lot of thought involved, there should be some pay off...