While we’re alive, we care. When we’re dead, it’s up to our children to care. Inheritance wishes are generally respected, but also can and do get overridden. I’m not saying that an author’s wishes shouldn’t be taken into account, the living still care about how they felt while they were alive, but it shouldn’t be the one and only priority that gets respected. Again, the dead can’t care anymore. Only the living can.
That really depends upon your beliefs and understanding of the cosmos. Not everyone agrees with that.
To be fair, I have practiced shaivasana (“corpse pose”), specifically including “corpse don’t care” as a response to existential anguish arising and passing. But I also know quite a good bit about what it means to regret and long for second chances or a path not taken. I think it is quite rare for anyone (regardless of beliefs) to die without regrets. If you are able to pull that off for yourself, I’m glad for you.
In a belief system where there is a Creator, and the Creator is a Mother, all of Creation are her children. Thus, as humans, raising and nurturing a child is as much of an act of creation as art, music, etc. And conversely, our artistic creations tend to develop a life of its own.