Nofollowing privacy/contact pages..?

As we all do our backlinking campaigns, should we make our privacy policy and contact pages nofollow? Or do bots need to crawl them so they know we have a legit website?

The reason I ask this is because I want to concentrate my backlink/pr juice to the webpages that will help me make monies! I don't want it to get dilute, backlink/pr juice flowing to pages that is not necessary.

No, there is no need to make those pages ********. Because, it will allow PR sculpting to unimportant pages.

As far as their crawling is concerned, Google can discover your Privacy policy page through sitemap.

******?

So, don't make them ********?