Yeah, there's a reason for that.
It turns out a lot more money is spent on marketing and lobbying that is spent on research.
Don't confuse pharmaceutical companies with biotech companies.
Also a lot of cutting edge research is actually performed by public universities by professors on that state's (or NIH's) dime.
Often, the same researcher then spins out the company that tries to commercialize the research.
I can be convinced that the current patent system help the profitability of drug companies I am not sure if it help the sick people.
Without them you wouldn't have the medicine. Then that won't help the sick people. As it stands, there is a difference between the medicine that rich people can afford and that poor people can afford. That may be morally objectionable- and maybe we should fix it. But at least the medicine exists, and eventually it gets cheaper on average for everybody.
I am very much for patent reform, but we have to do it intelligently. Where patents help- keep them. Modify them maybe. Where they are despicable destroy them.
At least in some cases in medicine-- as in other high barrier-to-entry endeavors-- I am convinced they are useful. In other cases they are infuriating.