Philip Kaufman — American Director born on October 23, 1936,

Philip Kaufman is an American film director and screenwriter who has directed fifteen films over a career spanning more than five decades. He has been described as a "maverick" and an "iconoclast," notable for his versatility and independence. He is considered an "auteur", whose films have always expressed his personal vision.:1.. (wikipedia)

Similarly, the Marquis is presented in this film as someone who would disturb the status quo and therefore must be kept imprisoned.
You can have a lot of unhappiness by not having money, but the reverse is no guarantee of happiness.
Whatever you think of de Sade, he was a complex figure and we should not look for easy answers with him. He was, strangely perhaps, against the death penalty, and he was never put in prison for murders or anything like that.
To me, thoughts are fun and art is fun. The strength of our society should not be idle entertainments but the joy of pursuing ideas.
They are always very lax about putting restrictions on violence for children's movies, which I think is much more harrowing than sexuality for children.