If the parts are better than the sum

(This is not a hope-giving, elevating, euphoric post. More often than not, it may leave you depressed. Your last chance to stop reading is at the period after this line.)

Synergy.
Its a good thought, but the cynic in me finds it difficult to apply to myself. If I die right now, two blind people can each see through one of my eyes, theoretically my heart can pump someone else's life, my lungs may thrive elsewhere, my kidneys may save two lives, my bone marrow can save someone, and atleast one more person can get my job. And yet here I am. Which makes me wonder : Am I really worth more dead, than alive? Am I - as a whole - better than 6 or seven people who may benefit from my death? Among millions of incomplete lives, what is the purpose of my being complete? No recollection of anything stupendous. No testimony of me having made any difference to any life other than my own. Just a body of water hurtling towards an inevitable plunge into the deep. A happy memory in some peoples' lives? Yes. But a memory does not have to be alive. No one's going to want any of the things I mentioned above after I am 70 or 80 and kick the bucket - the parts would be rusted, or non-existent. So I wonder : Is today's sum of me really better than the individual parts?