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I had some thoughts from last thursday's lecture with Prof. Grobstein.  We were talking about the point and whether or not individuals served a point once they passed down their genes to the next generation (looking at evolution merely in terms of reproductice success and passing on genes).  My initial response was to think that once our genes have succeeded to be passed on, we don't really serve any purpose with respect to evolutionary change.  Besides serving the role as parent/guardian and raising the offspring so they can succeed in passing on their genes, we don't really serve any purpose.  However, after some time, I realized that we all do serve a purpose.  Passing our genes on is only part of the puzzle.  The other part is the social interactions and influences we have on eachother.  No matter what, society, the economy, guardians, professors, advisors and the way society has been shaped etc. will all ultimately influence our life, decisions and outcome of our reproductive success in life (for we all affect each other one way or another)....so in essence, yes, we all do serve some purpose in life and there is a point to living life even after our genes have been passed on.