There's a brilliant description in Stephen King's Danse Macabre - his exceptional 1970s treatise on horror - in which he tells us one of the real reasons Dracula, the novel, was a big deal at the time. It's all about sex and the victorian resistance to it.

There's a scene in the novel where Harker is being seduced by one of the weird siser. Stoker speaks off it in obscure terms. King, as is his nature, does not: "Harker is about to be orally raped. And it's all right, because he is not responsible? You can sense his dismay when the scene is interrupted.

hence the reason that Coppola's version was titled Bram Stoker's Dracula. Deep beneath the veneer of victorian restraint is a story about sex and all it brings too us. Coppola made this very clear in his movie. He just hides in the Grand Guignol of the era. There's a reason that Oldman's and Winona Ryder's kiss was nominated for the first ever Best Kiss award at MTV's inaguaral Movie awards. (i linked Victorian literature and the MTV; that's gotta be a first anywhere.) Dracula is about sex. No filmmaker before or since has gotten it. Twilight actually made it all about chastity, (TV understands it...but that's another article)