Actually, this has no real bearing on people who already have it. A vaccine and a cure are two very different things. If they get a vaccine out of this, that won't help those who already have it.
I know you may reply that a vaccine could lead to a cure, but that's not necessarily true. It's a different beast. This is why you see several diseases that don't have cures but do have vaccines. The flu is an example. Polio being another. And rabies (though that one...
Yes, a cure is worth much more money than a vaccine probably. I wasn't saying it wasn't. But that's only if a vaccine doesn't exist. If a truly effective vaccine exists (one that truly prevents the disease with great certainty) then a cure becomes far less profitable if arriving after that.
The reason being that the "consumer base" for that cure becomes a very very small amount of people, since the vaccine will prevent future people from even gettin...