My original response was to highlight that perhaps we shouldn't be elevating child-raising as a completely altruistic, society-benefiting endeavor. We're talking about a few tech companies, which is not representative of the U.S. (nevermind human civilization).

"Amortized value to society" seems a very one-sided portrayal. Why should I earn less than someone who has kids, when skill/experience/contribution are equal?

Being a parent is a personal choice in today's day and age, especially for highly-paid tech employees. Let's not paint it as some altruistic gift to mankind.