The hunting permits are TARGETED fees. The money these permits brings in is earmarked for wildlife conservation, unlike money spent by other types of tourists.
Are there a small number of permits sold?
Yes! This is due to the conservation efforts of the governments. Which the permits help pay for.
Have you ever been to Africa ? I can’t imagine this is news to anyone but, yes, widespread corruption and mismanaged conservation programs do keep money from protecting threatened species. Funds either get diverted from their purpose or are not being dedicated to conservation in the first place. Crack down on ivory and you would find the money from out of general revenue.