Scientists can have all the good will in the world if they are not allowed to publish by those sponsoring the research or not even given the funds to do the research in the first place.
Statins are developed to reduce cholesterol, not blood pressure. While there is some thin evidence that statins might effect BP, there's certainly nobody developing them for that currently.
The research dynamics around Covid19 are very different from those of some run-off-the-mill treatment that was for the most part developed within the private sector (and might or might not have been met with kindness at the top level management which has been approving the POs)
I can easily imagine various pharma companies individually (and without any kind of collusion!) de-emphasizing a cure in favor of a recurring treatment because each follows their self-interest.[1]
In this case, money has been thrown at them with the explicit project description "develop a cure so that public policy can return to normal" (and as is quite normal, policy makers want it done quickly so they look good. I can live with that.)
[1] It only takes one research facility to work on the same issue without such an incentive to make an entire industry scramble towards having the best cure (because otherwise they'd lose the treatment income _and_ leave the cure to somebody else). Identifying candidates where bean counters optimize for treatments even when a cure is possible, and then investing in such areas, might be public money well spent.
But this is exactly the argument the lizard people from outer space are making in V. However it turns that the scientists are actually the good guys as their grounded, systematic, critical thinking is key to prevent the free world from being taken over by evil manipulating entities.
People should really rewatch this show.
[0] Except the people that will get offended no matter what you say, they seem endemic.
So yeah, I will take all vaccines I can. If I need a third dose to keep my immunity high against COVID, I will sure take it.