First Ladies should be like children - seen but not heard.
You may be interested in the secret story of Lady Bird Johnson.
Back when LBJ was president she was known as the not very attractive dumb first lady whose main claim to fame was telling people to keep highways looking beautiful by not littering.
https://www.pbs.org/ladybird/shattereddreams/shattereddreams_report.html
But—Lady Bird had a secret. Her husband was totally corrupt and received kickbacks from a wide variety of Texas companies, including defense contractors. Her job was to manage all that money, and keep it out of the public eye.
She was _very_ good at it—and the media never found out until long after they died. _Smart_ lady.