The real way to look like a supermodel: photo-editing

I recently saw this video on Back in the Skinny Jeans and when I checked it out on YouTube, and was surprised (and a bit dismayed) to see that there are many similar videos showing how easy it is to make someone look skinnier in Photoshop or Paintshop.

I work as a photographer too and I know how to take a few pounds off the subject of a photo. Do I? Hardly ever, because when I make an adjustment like that, to me, the photo is no longer of something real -- it's a product of technology. Photos are meant to capture real life -- when you change it to resemble what you'd like to see, it becomes a sort of cartoon, don't you think?

What do you think? Is any beauty in the media these days real? Is that a good thing or a bad thing?