First of all, there is no vaccine for Hep C. You are thinking of Hep B, a similar disease but not quite as bad as Hep C. The health policy of vaccinating middle-school children (may well be wrongheaded, but is not profit-driven) is to try to eliminate a large conduit of infection of a sexually transmitted disease (and needles, etc. ) in a community. The vaccine, I believe, is out of patent or will be very shortly. I don't believe there are any significant side effects to this vaccine--you may be thinking of DPT and tentanus. Remember the long shortage of tetanus vaccines? Do you know why there was a shortage?
Demonizing the pharm industry is a habit better left to the left.
Since you brought up Hep C--we have a vast number of infected people with this chronic and incurable disease. Believe me, they get treated at our expense. It is a leading cause of liver failure and cirrhosis and claims most of the need for liver transplants. People with failing and rotten livers cost us lots of money
The demonized pharm industry is on the verge of a cure for Hep C, are now being treated to the tune of $12K which would save millions and millions of dollars. There are two companies now competing to bring this cure to market. Bless the profit motive of the pharm industry. They produce, rather than confiscate, wealth--the lawyers are confiscators...
But no cure yet for Hep B, which goes after health professionals...hopefully those pharm companies will come up with something. If there are fewer "chronic carriers" there will be fewer infections of Hep B. That is the policy behind the vaccinations.