I can probably speak for a good number of people who, after paying premium prices for their business class seats, will tell you the last thing they want to do is get trapped for several hours with a potential crying baby, or smelly diapers either in the cabin, or in the lav where they will surely be left behind.

Personally, I don't believe that babies should be allowed in the premium cabins at any price, and even advocate an age limit of at least 16. I've taken later or alternate flights to avoid infants. That is a very long haul to take an infant on yourselves let alone subject other passengers to the problems traveling with an infant may cause.

If all you are looking to do is "show off" your ability to procreate (no big feat) as you put it, start with photos instead. Allow those who paid for those premium cabins to enjoy what they paid for or earned with their patronage miles.