Really?? I always thought it was just a really bad "B" horror movie along the lines of "Attack of the 50 Foot Man" and "Godzilla" (I've been a horror movie fan since I was 5). They ALL have to have the beautiful, weak, helpless, ultimately brainless woman menaced by the alien, vampire, zombie, whatever who is sexually attracted to her. She is then daringly rescued from a fate worse than death and almost always anatomically impossible anyway - by the dashing male hero.
It's a convention left over from Victorian era literature. It's no different than the way a car ALWAYS pulls out in front of the good guys during any high speed car chase. People analyze it too much. You might as well say that the male zombies chasing the weak-minded, weak ankled woman...oh yeah, another convention is for the beautiful twit who's being chased to twist an ankle at a crucial moment...in the original "Night of the Living Dead" show the fear living men have for the sexual competition of mobile dead men.
On the contrary, King Kong is a truly great iconic movie with a set of fascinating psychological and social themes embedded in it. There is the obvious "beauty and the beast" theme (a subtile warning). If you look at some of the key scenes in the movie (the attempted negotiation for Fay Wray, the invasion of New York City and the destruction of the elevated train and of course the ever present theme of rape) you'll see that, at least on the unconscious level, the creators of the film were grappling with racial issues. Cinematic art can do that - it uses symbolic and associational material to reflect underlying concerns. This is not a case of "overanalyzing" a movie - to the person who watches King Kong with an open and thoughtful mind, you will see all these themes presented.