Actually i'll post an answer which is relevant:
Balrog is a nice guy. He willfully helped the doctor, but may not have been aware of all that went on. In fact, this happens a lot in dictoral regimes such as the doctor's. The supreme psychopath overlord guy tells a minion to "bring them to me." The minions dont know what for, so they just do as told. This can be seen in Nazi germany. Jews, homosexuals, mentally ill people, etc., were rounded up and later killed. Lots of times the german soldiers knew nothing, or at least little, of what was happening at the camps.
So anyway, balrog is seen as a nurse at the very end of the game, suggesting that he wanted to help all of the people injured when the island crashed.