As to other French Royalists, I believe not a few of the officers in command of irregular forces in the Vendee were of the nobility.
Yes, they were.
And they were treated with contempt by the royal family after Waterloo. 'When Rochejacquelein's brother (known as le Balafre for his scarred face) asked Berry for help, he got this for an answer: 'What did anyone do in Vendee anyway? They fired about four shots!' Le Balafre had the perfect answer: 'Monseigneur, it is unfortunately that the first one killed my brother and the second wounded me.' This information can be found in Souvenirs de la Vie Militaire by Jean-Pons G Viennet, 149 as well as on page 669 of John Elting's Swords Around A Throne.
It should be noted that Louis, his brother and his two royal nephews were all somewhat gunshy. And ridiculing someone, especially someone who had fought for you, in this or any other manner, is not admirable in any way.