It's done as a trophy to their manliness or their ability to shoot, etc. I once watched a video with a couple guys shooting at a grizzly on a ridge opposite them. That bear just shambling along, minding his own business and when they hit it, the sound of their cheers and hoots and catcalls as the poor dying animal bounced from boulder to boulder down that slope, was dreadful.
There was no respect, no awe at his majesty, just satisfaction at another creature killed. Also saw a video of a guy hunting coyotes and there was the same reaction, and then there's the horrible guy in Wisconsin, Cody Roberts, who ran down an 18 month old wolf, put a shock collar on her, dragged her into a bar where they tormented and tortured her with that shock collar for hours!
He and the neanderthals in that community thought that was just fine too! His aunt skinned the poor creature later and bragged about her fine nephew and supported his brutality. Trophy hunters

, heartless.