When people that we love and admire die, it gives us the opportunity to figure out what they really meant to us. In many cases, towards the end, we see them less and do not "live" the deterioration. The lasting personal memory is of a person getting stuff done.
As we are the sum of all influences in life, we have a lot to be thankful for - but only limited means to "pay back" the debt. Honor the giants on whose shoulders you stand - each in her/his own way. We do not need huge public displays although if the opportunity arises, take it with humility and reverence.
I see death as the release from the earthly state, going to a place with no pain and no need to answer any more questions or solve problems. Our influence can (and should) long extend after death.