My understanding of these trophy hunts is that they only allow people to shoot the animals that are no longer contributing to the gene pool.
For now… A lot of these “conservation groups” putting out these types of studies are actually just hunting lodges owned by rich families. They claim that they are preserving the land, and that they use the proceeds from these types of hunts to protect the land.
However, these “conservationist” are typically just poachers with a marketing team. For the most part their goal is to legitimize the illegal hunts they are already committing.