Thoughts on World Women's Day 2008: Person vs. Posterity

Case 1:
A happy couple. During the delivery of a baby, the wife had some physical complicaitons which damaged her future reproductive capacity. She will not be able to give birth any more babies. Now the couples are very concerned about the health of their only child, if anything bad happens to the baby, who will carry forward the flagship of posterity? Sometimes the husband frowns upon the fact that his wife is not able to deliver anymore.

Case-2:
Few months into the marriage, a young couple found out to their dismay that the husband's semen count is too low to become a biological dad in a natural way or even in an artificial way. But three years after the marriage, they feel very lonely. They love each other, but the emptyness also creeps in sometimes.

Case-3:
A newly wed young girl is diagnosed with cancerous cells in a part of her body that is vital for conceiving and giving birth of babies. Doctors advised that in order to reduce of the risk of spreading cancer to other parts of the body, it is better to remove those infected cells from her body through surgery. The operation may save the life of the lady, but can it save the marriage?

In all the three cases mentioned above, the main question boils down to this: what is the main concern of the spouses? The persons they are married to? Or to be able to continue expanding the family tree for posterity?
These are tough situations specially for people from cultures where posterity is glorified over persons. But personally, I think we should care more about the person than for preseving somekind of geanological footprints for posterity.