Many countries that are comparitively rich should see similar high prices. This is not the case. Also when looking at the develpment costs of some of the most expensive drugs the high prices are simply not justified.
Especially in cases where the main costs for a manufacturer is marketing because development was fully or partially financed from public money.
I mean aside from insulin the epipen price hikes are also well known about. As manufacturing technics improve and whatever cost overheads are payed off the prices should go down for all drugs. This is not the case at all somehow.