Oh, that and the sweet smell of money in their pockets from Big tobacco.
While Big Tobacco certainly has a dog in the fight, their dog is a lot smaller than Big Pharma's dog. .... While BT would like to squeeze every nickel they can out of any customer they can, it remains that they will sell the tobacco to whomever extracts the nicotine no matter who it is providing the delivery device or method. They'd like to be the one's providing the delivery, but they don't *have* to be the one's providing the delivery to still make money. Big Pharma, on the other hand, makes nothing on nicotine if they don't provide the delivery method.
I know this is well off the topic of this thread... But it needs to be said: Though each and every one of us has reason to be disgruntled with Big Tobacco, we can't continue such an adversarial relationship with them. Three countries produce pretty close to 90% of the world's tobacco. Right now, BT largely views vapers as parasitic. We need to do our part to make them feel more like it is a symbiotic relationship. Just imagine what happens when Turkey, China, and the US no longer produce tobacco.... then we got no get up and go in our juice. We have to accept the fact that we need BT so that there is nic in the juice. Big Pharma, on the other hand, has no real business I can identify putting their nose in to vaping. All of their science is junk science. All of it.