Earlier quoted context omitted.
Except of AIDS, none of the items on your list are things we really need but just a naive attempt of masking the problems of modern society life. Worse still: most of these problems were caused by the psychopaths who wanted nothing but money and power and found in the "techno-optimism" the perfect excuse to justify their actions.
You're conflating type 1 and 2 (and more?) diabetes. A cure for type 1 diabetes is very much a thing millions of people really need
So, I'd say that a cure falls more in the "nice to have" than "absolutely need".