Hollywood has been a cesspool of sexual infidelity almost from its inception. The Hays Code and the Catholic Church kept most of the immoral behavior off the screen from the early 1930s into the 1960s but fan magazines and the popular press highlighted the divorces and extramarital affairs of Hollywood stars and wannabes. Even actors who were politically conservative, like John Wayne and Gary Cooper, were promiscuous. There was also a large number of homosexuality, most of whom were publicly discrete, but whose preference was well known in Hollywood yet tolerated.
In the 19th Century, actors were considered moral pariahs, hardly respectable in polite society. Perhaps the Victorians were more perceptive than their descendants.