O.k. lets straighten this out

Pharmaceutical companies have to hire chemists/doctors/lawyers/researchers to do trials/get patents. Doctors do not spend 11+ years of their lives being hammered with more knowledge than most of us are capable of, on top of retaining/paying 30+Grand a year in tuition for med school so that they can be paid the same amount as someone who works at Mcdonalds. This would be stupid and if you have a doctor who does work for 5.15 an hour, you should probably switch because if he's not intelligent enough to look after himself and more then likely he probably isnt the person you want taking care of you.
Secondly after a pharmacetical company receives a patent on a drug they must define it's uses, then they have to produce it. I believe the patent entitles them to 7 years exclusive rights to a product under its trade name (i.e. BAYER aspirin), after the 7 years are up they still can produce it but everyone else gets to jump in with generic equivalants.

And as far as the rich people you're referring to, if they get rich it's by their own genuine account.