Unless they sell the new insulin at cost, then no, they don’t get to charge more for the existing product.
They always say that they charge more to pay for the risk from R&D, but having people pay more an existing product to finance future R&D is the complete opposite of that.
This is why some stuff should never be handled by private corporations.
And I hope people who sides with IA in this eill accept to stop collecting their wages and start working for free.
Because this is what you’re proposing.