Rich assholes spending their money on expensive luxuries fund the luxury economy, which finds its way to the regular economy.
The word you are looking for is investment, while what you’ve described here is consumption. Investment is far, far better than consumption. One is adding to the market, and the other is removing things from the market that could otherwise have been put to much better uses.
Babie’s heads are already all mush when they exist the birth canal, and the fact that twins exist the oven way sooner than singletons points to a mechanism that triggers birthing once the baby matter exceeds some critical metabolic thresthold.
Still think that pregnancy is a barbaric practice, and we should develop artificial wombs as soon as possible.