You are comparing an insured price to a cash list price (most of which does not go to the pharma co and a price which effectively nobody pays). As an insured American, I would pay 0$ for insulin.
Edit: I just remembered that diabetes is recognised as a long term condition, so you would be 100% reimbursed by the public insurance scheme.
On top of the national mandatory health insurance, there's also optional private health insurance and private hospitals and such, but even for those the prices are nowhere near the insane numbers I see whenever US healthcare is discussed, and I frankly can't understand how people aren't revolting over there.