In many places, rare and endangered species also maraud crops. Moving them elsewhere would ensure that conflict with humans doesn't cause their demise. If translocation worked, it would have major advantages over the current options for saving endangered primates. Primates have special needs. They are large-brained creatures that must learn what they need to know in order to survive.
Traditional knowledge is passed down from generation to generation in the wild.
Once placed in captivity, primates lose the knowledge and even the skills to acquire knowledge. Because an intact social group is the greatest asset a primate can have in adapting to new conditions, avoiding captivity improves the chances of successful conservation and management if the animals have to be manipulated in some way. It is also less costly since rehabilitation and captive propagation are not required. But moving forward would not be easy. Baboons, because they are numerous and smart, are not well loved in Africa.