In my opinion the question cannot be answered to most people's satisfaction. I believe a person has to have fired a 44 magnum enough to be very familiar with it to fully appreciate and understand the 41.

Even then a shooter cannot fully understand the subtle differences and superiority of the 41 unless he is an experienced/knowledgable reloader and it certainly helps if he has a background in casting bullets. At this level the question then becomes as someone has already mentioned,"why the 44 magnum ?"