"Limit the insulin to people with type one, as this is not something caused by a lifestyle choice. Let the fatties die off." Yeah, it does. But  given the recent high profile case where a GP managed to persuade a huge number of type 2  patients to change their diet and exercise, thus reversing their symptoms I would hope this will become the default first line treatment, not stuff them full of drugs,thus freeing up insulin for people who actually need it