Douglas,
I think you are correct in your evaluation of their live then. However, if the were alive today and in their prime (40s-60s) they would fit right in with the celebrity culture of today. Think Sarah Ferguson.
They would be offered a reality TV show. They would be on the cover of all the magazines. They would lunch with P. Ditty and Ivana Trump.
I think the Duchess loved and coveted the quiet, reserved life of the old moneyed rich a la Jackie Kennedy and Brook Astor but I think the Duke coveted the spotlight and all the attention.
Just my humble opinion.
TampaBay