If there is a single company that tops the "no good deed goes unpunished" contest I would pick Gilead Sciences. By a mile.
antiviral drug discovery
The early 1990s were known as the dark days of AIDS. After more than a decade of intensive research, the death rate from HIV infection remained at 100%.
A little luck and a clever idea can go a long way in finding treatments for unmet medical needs. One way to do this is by making use of drug repurposing - the process of discovering "new" drugs from "old" ones.