Sometimes I am sad for weeks, or for a day or so, or a few minutes. My emotional reaction has no bearing on one's value as a human being, or even as an artist, just on the personal impact he or she has had on me.
Some artists have a distinctive voice that speaks to me on a deep level, and when they are gone I feel a heart-rending ache. Others are actors whom I admire and who have performed in works that have been a part of my life for many years, and I am grateful for their "service" in bringing the joy of immersive TV to so many fans. And others apparently are entertainers who seem like parts of a machine, even if the entertainment experience produced by that machine has elicited strong emotions within me.
That being said, it's always sad when someone dies prematurely. I often feel like his or her best work has yet to come, and it's a shame that this potential never had the chance to realize.