I can't speak to CVS's position on e-cigarettes or their potential ties with nefarious "health" organizations, but I can try and relay my perspective on their cigarette policies.
I read a very good article a while ago about CVS's decision to stop selling cigarettes. Here's the link, for interested parties.
http://seekingalpha.com/article/2107803
The article contends that, from a game-theoretic perspective, CVS voluntarily discontinuing cigarette sales is a pretty genius move.
They get first-mover advantage, and all the positive PR that hating tobacco brings.
It leaves Walgreens and Rite-Aid in an interesting scenario. They look bad compared to CVS, continuing to sell cigarettes, but don't get as many bonus points for being a follower, should another one of the big three also stop selling smokes.
Further, if a 2nd company follows CVS, the last to sell smokes would presumably get all the business of a certain smoking crowd.
So, it probably pays to get the good PR from being a first mover, and it would pay to be the only drug store selling smokes, but it would hurt to be the 1st (and presumably only) to follow in CVS's steps.
ETA: now I get it, considering this and their e-cig "information" on the site. They're quitting smokes, but using pharmaceuticals to get them through the cravings.