No. The psychological impact of asomeone themselves killing animals simply for the pleasure/sadism of it stems from they themselves actually doing the killing. They're getting the charge out of killing something themselves. That is significanly different psychologically than people who get a charge out of seeing other things kill each other, to which you have varying degrees. Boxing, ultimate fighting, people getting killed in films, animal fighting...all along that spectrum, but all VERY different than someone getting a thrill or sensation from actually killing something themselves.