People like the person noted in the article below are greedy parasites who seem to thrive on the misery of others. They can come up with all kinds of reasons to justify the things they are doing, and also make all the excuses they want in this regard, but in reality all they seem to care about is making money for themselves even at the expense of others. This is unfortunately the result of capitalism run amok, without a conscience. It is folks like this who cause new rules and regulations to come into place regarding the the conduct of business that they can later cry about.
The publicity behind this story may have changed the final outcome a little.
http://www.nytimes.com/2015/09/22/business/big-price-increase-for-tb-drug-is-rescinded.html?_r=0