The only ideal that type of company has at its heart is the pursuit of profit. If they see a real cure that costs less than the long term “maintenance” care they would be all over it. If not, then not.

Novel cancer treatments aren’t a terribly good comparison in my opinion. Rarely does a single one in isolation offer a clear and permanent cure - though with any categorization that broad there are of course exceptions.

Hell, when scientists identify care that is likely enough to prevent the need of reactive treatment insurance companies often make it free to lower their overall costs - teeth cleaning and flu shots for example. That’s not altruism on their part, it’s economics.