It isn't always about government indifference and big pharma chasing the big buck. (Often, but not always.) SARS-CoV2 and Malaria are very different beasts.
There has been a huge amount of political will and expenditure to try to reduce the harm done by malaria through programmes of all kinds: house nets, bed nets, education programmes, cleaning up mosquito breeding pools, insecticides, surveillance/monitoring, discrimination of species, acoustic deterrents, acoustic mating disruptors, olfactory deterrents, preventative medicines, treatment medicines, release of sterile males, release of males with other types of genetic modifications that are lethal to their young, and probably many more efforts that I cannot think of off the top of my head. It's hard. There are vaccines but they haven't worked very well to date because of the nature of malaria - maybe the latest will turn the tide.
Why it is hard:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3736123/
Optimism about malaria in general:
https://www.bbc.com/future/article/20190522-how-the-malaria-vaccine-could-change-world-health#:~:text=The new vaccine has been,$700m (£552m).
Optimism about how the new mRNA methods (that are being trialed for pretty much the first time to prevent Covid19) will be absolutely revolutionary and democratise vaccines for many different diseases. Lightning fast and super cheap:
https://de.reuters.com/article/us-h...ould-help-defeat-other-diseases-idINKBN27W2PJ