Sure, insulin doesn't have to be expensive, and shouldn't be. Economies of scale work for insulin, and it doesn't require recent expensive research in order to

Sure, insulin doesn't have to be expensive, and shouldn't be. Economies of scale work for insulin, and it doesn't require recent expensive research in order to be made commercially available. Benralizumab and tebentafusp are probably very expensive to make and took a lot of work to develop and test. Not very many people need them, but the people who do are likely to die horribly without them.