Although the attached press article is over two years old it is every bit as relevant today as it was then - more so, probably.http://www.independent.co.uk/life-style/health-and-families/health-news/drug-firms-bankroll-attacks-on-nhs-947316.html
It highlights how a whole string of small charities and patient groups which actively attack NICE, the NHS and HM Government about decisions NOT to provide certain expensive new drugs on the NHS all receive substantial funding from the drug companies.
It also notes that while those groups which DO accept drug company funding can be very vociferous about the "unfair" decisions of NICE/NHS/HMG, none of them is attacking the drug companies themselves for their exorbitant prices. Even though price reductions could resolve the original problem, i.e. decisions not to supply those drugs via the NHS due to high prices.
The drug companies have obviously calculated that they will get a better return on their investments if they spend a couple of million pounds maybe funding internal protest groups, rather than reducing prices, which would cost them many billions.