The judgement, if it has to be made, is about morals and motives. These have nothing to do with you or I or how we, as individuals feel about the subject in hand.
He has been hunting before, he likes it, it is good for his ego. We know he has done a lot of hunting over the years. He cannot claim any ignorance on the matter; as he has been prosecuted for the act in the past. Also, he obviously derives pleasure from the suffering of others etc. He IS a dentist for a start? He is just another sadist, who can use his wealth, to achieve his goals. He has and is using his wealth to feed his ego and desire for these 'pleasures'! No matter how he tries to package it, or legitimise it; he KNOWS it is wrong and unacceptable. If he was a genuine hunter; like many across the world, doing it for food, or conservation, he would not be hiding, he would be standing proud, like the big man he wants to be.
I understand the people guiding him; paid to fulfil his sadistic needs, have been put before the courts in Zimbabwe and so should he. Then maybe after justice has been seen to run its course; maybe made to go and little more bush hunting. 100 miles or so from civilisation with a spear, a good knife and maybe even a good quality bow, made locally in the traditional way, so he can really get a feel for survival in the wild.
Oh, I forgot, we must be fair, we must be seen to show compassion and a duty of care. So we should fit him with a GPS collar, just in case he should fall foul of the wild, or try to crawl out of his comfort zone.