In case you were innocently using whataboutism without meaning to, here’s a tip to avoid it.
If you’re going to compare to the US or wherever, first ask yourself if that place was mentioned in the comment you’re replying to. If not, it’s whataboutism.
It boils down to cash.
Companies can make money off penicillin. Governments can readily allocate funds to visible, common disasters.
Disasters that have been a century in the making and require whole nations to change the way they do things for an observable result decades down the line is almost impossible to get money for. Our shortsightedness is our downfall