“What else is there to research about disease? They’re bad, but people get infected.”

These are things which shape our world, it’s worth understanding them at a level which doesn’t fit on a bumper sticker – and, right-wing mythology aside, the cost is not very high. Academics are cheap and their work almost always has spin-off benefits, even if that’s just providing a place for people to learn general research skills they take on to the workplace.