That's why the pharmaceutical industry is heavily regulated. We can't trust greedy corporations go to completely unregulated.
Maybe you should do a bit of research into the regulators of the financial corporations. It's quaint that you have such faith in the government appointed regulators of the pharmaceutical industry. However, I wonder if such faith is blind delusion or not.
Research who was regulating AIG before its collapse. Read up on how that regulator was placed in such a position of trust and by whom. It's faith building stuff...
http://www.businessinsider.com/how-bank-regulation-helped-destroy-aig-2009-3
http://seekingalpha.com/article/96190-aig-rescue-a-failure-of-regulation
http://www.pbs.org/newshour/bb/business/jan-june09/aigwrap_03-24.html
^some randomly selected links.