So if my insulin wasn't being produced, doctor told me, I should just die naturally instead of being grateful for insulin, because making someone rich is a greater sin? You're making very little sense.

As a society, the goal should be to make it so you don't need to pay some private company for insulin. Your condition would ideally be totally cured.

Instead, the current state of affairs (where they make a bunch of money off you) is a sort of local maximum and there is very little incentive to research a genuine cure unless such a thing would be more profitable than present day.

No, you're arguing in bad faith. It's obvious that that wasn't what the OP meant. Besides, the insulin graft is an excellent example of how in some countries people with a particular illness are just seen as dairy cows to be milked for every last cent: because life is priceless.

In a just world - not the one we live in - medicine would be produced like every other bulk molecule, because that's really what it is. Insulin could cost ~ what you pay for some other complex chemical. But because of patents and various graft protecting industry practices depending on where you live you may be overpaying by many orders of magnitude for something that could be quite cheap.

Society is not my personal piggybank for help. Being born with a health condition already makes it an unjust world. Being entitled to other people's work by your own metric of payment is also unjust.

the point is that in a fair world, the cure for your condition would eventually be found and produced but in your world, it wouldn't hence you will be paying more and more for healthcare as the number of potential conditions you could have grows

In a fair world I wouldn't be born with a condition, and I wouldn't be entitled to someone else's work.