I assume most athletes are like this. I remember in football, hockey, sometimes wrestling, it was just pleasurable to hit someone. Or boxing with those gloves our parents foolishly got us for Christmas. It is fun to crash into somebody. The thought of the opponent breaking a bone or ligament is the furthest thing from your mind.
When there is an injury in pro sports, I see players on both teams look genuinely concerned. I think there is a real brotherhood of competitors.