You don't know what he wants or doesn't want. It _could_ be selfish, but it could very well not be.
Maybe he just had the chance to learn a lot more about this particular disease and so it's more natural for him to invest there. It sure would feel more natural to me to contribute to research on a disease that I have experienced first-hand than to some other random one, even if the random one is more "important." No selfishness there. I would just identify better with the victims and have a more real urge to help them.
Maybe he just had the chance to learn a lot more about this particular disease and so it's more natural for him to invest there. It sure would feel more natural to me to contribute to research on a disease that I have experienced first-hand than to some other random one, even if the random one is more "important." No selfishness there. I would just identify better with the victims and have a more real urge to help them.