That wiki entry literally says that it was designed to help during childbirth…
“for symphysiotomy and excision of diseased bone, respectively.”
Follow the link for symphysiotomy and it says “Symphysiotomy is a surgical procedure in which the cartilage of the pubic symphysis is divided to widen the pelvis allowing childbirth when there is a mechanical problem (obstructed labour).”
Financially stupid? I guess, but that applies to almost all collectibles. So does paying to go out for a meal when it’s cheaper to cook at home, but people still do it because they enjoy it.