I'm going to throw the remote through the TV if one more news twink says something on the order of "When we come back, we'll look into what drives a successful man like Eliot Spitzer to risk it all..."
Oh yes, let's convene a panel of experts for that. Let me help you: because he wants to get his nut off! Stop with all the analysis! It never ends, I hear all these people talking about how powerful people think they can get away with anything, so it's a thrill, or that it's for this psychological reason or this one -- please, he wanted to CUM WITH SOMEONE! Stop overthinking this: people need sex, and married people generally aren't getting it. Studies show (OK, I'm making that up, but it's true nonetheless) that people married 20 years only have sex on Valentine's Day, their anniversary, and their birthdays. You can hate me as the messenger, but it's true -- how can anyone be expected to still want to score with someone you've been having sex with for a score? Mr. Spitzer simply wanted what humans desire, to feel that sensational sensation when you're hot for someone, to touch and hug and bump and grind -- this is really not that complicated! If you're ascribing more to it than that, it's probably really more about your own fear that your spouse wants to do the same thing.
Or is doing it. Married people are often starved for sex, touch, affection, not to mention the kinky stuff that wifey definitely won't do. So if you find yourself at such a place in life -- and this is most certainly wives as well -- where you're dieing like this, you can do one of three things: get divorced, cheat, or continue to live a life with little or no passion, sex, etc. It's easy to point fingers, but how about some recognition that society's rules are so at odds with human nature that there are actually no good options for an Eliot Spitzer, and the ZILLIONS OF PEOPLE JUST LIKE HIM, many of who are tut-tut-ing today. I guess a guy is a hero who sticks it out and leads a life of quiet desperation. I'm not so sure it's heroic to make him.
An analysis putting all this sturm und drang into some sort of perspective. (Hint: There really are more important things.)