After Jos went to Court, which we may be sure he did as a loyal subject of his Sovereign (showing himself in his full court suit at the Club, whither Dobbin came to fetch him in a very shabby old uniform) he who had always been a staunch Loyalist and admirer of George IV, became such a tremendous Tory and pillar of the State that he was for having Amelia to go to a Drawing-room, too. 
After Jos went to Court, as a loyal subject of his Sovereign, he became such a tremendous Tory and pillar of the State that he wanted Amelia to go to a royal Drawing-room, too. 