But isn't it true, that it's more profitable to create a drug that a user must take for the rest of their life, rather than actually developing a cure, that only requires a one-time payment?
Creating sophisticated compounds to fight complex diseases ain't easy. Science progresses as it learns. Outright cures are hard to come by. Your suggestion that this is intentional is a common one and comes mostly from the far left who despise industry and the profit motive. Cynicism among these folks is common but, in this case, cannot be justified.
Of course, there are people who also believe there exists a cheap alternative to fossil fuel that is being suppressed by "Big Oil." Big Oil, Big Pharma, Big Insurance, Big Food.....they're all bad to some folks.