A lot of conspiracy theorists around here, but I doubt any of you know enough about medicine, science, finance, sociology and politics to even come close to making any conclusions about this all.
The most you can do is find anecdotal evidence and draw broad and mostly ignorant conclusions because you are too incredulous to know anything else.
The fact is pharmaceutical companies are businesses, expect them to do business-like things to ensure their success for themselves and their investors. But I am guessing you expect these people to go to school for a decade or more and then work tirelessly to cure the worlds disease for nothing more than the knowledge of doing so? Altruism is great and all, but most of the time it's not a valid financial strategy. Before you throw stones, you have to ask yourself what YOU are doing for others.
Another thing too, many advancements in medicines have come about by these reviled pharmacuetical companies, things that were only possible by the profits from other, probably less meaningful medicines, but for some reason those are always ignored.