There're categories of hunters in the lore that stop poachers and other people fucking with the wildlife so those guys you could make a case for pretty easy. MH player characters are supposed to be more ecological hunters though. The official missions you get from the hunter society are generally culling the numbers of a weak monster because they're overpopulating the area , hunting medium power level monsters that have left their natural environment and are severely fucking up an area they shouldn't be in, or some kind of extremely strong/huge monster that's going to wipe out a bunch of people if not stopped.
There're categories of hunters in the lore that stop poachers and other people fucking with the wildlife so those guys you could make a case for pretty easy. MH player characters are supposed to be more ecological hunters though. The official missions you get from the hunter society are generally culling the numbers of a weak monster because they're overpopulating the area , hunting medium power level monsters that have left their natural environment and are severely fucking up an area they shouldn't be in, or some kind of extremely strong/huge monster that's going to wipe out a bunch of people if not stopped.