It's remarkable how much impact the old Universal horrors have had. If you asked a 10 year old to draw Frankenstein's monster, they will draw the one depicted by Boris Karloff with the flat head and the neck bolts. They've never seen the film, but that design is so iconic and absorbed into popular culture, it's become the standard.
Same with Dracula, Bela Lugosi's Dracula has become so famous that most depictions replicate it, and it's become the template. Bram Stoker in his novel never said anything about a black collared cape, a white waistcoat or slick backed hair, but Universal's artistic license has become the norm. If you go into a fancy dress shop every dracula outfit will be based on Lugosi's version.