One of DH's friends is a nanny to the super rich. She specialises in the first few months so tends to move from family to family every few months, there is usually a "permanent" nanny as well. She is incredibly discreet so would never say who the families are but I know she's been given some incredible perks eg on her w/e off she was offered use of the family's private jet to go anywhere she wanted for the weekend (pre Covid). She also told us once that the baby she was looking after was Christened, and his Godfather gave him a castle as a Christening present. Not a toy castle, a real one.
DH were once in a Greek harbour when an amazing super yacht moored up. The family appeared, complete with baby. Incredibly glam mother was holding baby who was about a year old. A member of staff produced the pram and the mother didnt have a clue how to put it up, the father just walked off, the staff all tried. Eventually the nanny appeared and had the pram sorted in 2 seconds. Clearly neither of the parents had ever used the pram before. It was quite funny but also sad.