Perhaps not. The purpose of range of motion is mostly a competition thing. For example with squats, maybe you don’t need to go that low. To “cheat†in weight lifting might be good for us. 460 pound squat (cheating) as a more interesting bodily sensation. For example, the feeling of a very very heavy weight on my body and back and legs is what is the most interesting. Interestingly enough, the only “pain†I felt was in my wrists afterwards, my wrists being unfamiliar with holding and carrying that level of weight behind me (back squat barbell position).
Also, ego is good. The heavier your numbers, the more you will boost your ego.