After Dateline NBC has aired a show
Do try and remember that not everyone lives in the US - most non-Americans won't have the faintest idea what you are on about.
Actually even though I used to live to there - so I know the Dateline show - I would still have been in the dark if I hadn't recently happened to catch a segment on a British TV show reviewing the current state of American TV which featured these shows. Fortunately the name "Perverted Justice" stuck in my mind and Google and Wikipedia did the rest.
As for the rest of your post and the conclusions you draw - well maybe it's just the case that the sexual drive of these men is so strong it overwhelms their common sense. It's not an uncommon phenomena, this is just an extreme case with extreme consequences.
Oops! Wrong Planet