If you're making a cake, you don't just make the cake and have it look nice and have nobody tastes it. But that doesn't take away from your ability to execute what you do as well as you can and to have it be something for many.
God is the only one who knows how many children we should have, and we should be ready to accept them. One can't decide for oneself who comes into this world and who doesn't. That decision doesn't belong to us.
You can access that on many levels and the human spirit and the human mind responds to those themes because they recognise the veracity of them. That they are real things. Sometimes it even goes beyond logic, it's just a sense of something.