All I promote is that life is worth more than what others are perceived to get from you.
Did your father have a will written down that stated that? If he did, then it should have been respected. Sorry that he had to go that way if it was not his wish.
We have recently (in the past few years) lost my wife's father to a liver disease and we are currently losing her mother to Alzheimer's (which is almost worse, there but not) so I am no stranger to death. It is definitely very hard on those left behind.
My father: He was implanted a pacemaker against his wishes by an overly eager ER doc. My mother was not consulted and the rest of the family was in different states.
Life is over abundant and therefore pretty much worthless. However, an individual mind may have value. This is an emotional matter not a value matter. Capitalism does not apply here. For most of mankind's history the life of a person was valued by how many other people benefited from the death of this individual. Thus the development of Christianity.