But his goal is to eradicate it, not only prevent it. Preventing is a step towards his goal.

I'm not at all convinced that a higher standard of living inevitably leads to lower malaria infections. I actually think the correlation is rather weak, at least in the initial part of eradicating/battling the disease.

I agree with you that controlling the disease by having a stable, efficient and proactive health care system requires a solid economy. I just don't think that's where the problem lies for the moment.