Well, kinda but not really. First, the very nature of junk foods is that they are fun food, that's it. Your body doesn't need them for survival, but they do serve a purpose which is more for comfort and enjoyment.
There is little to none nutritional value in typical junk foods like chips, cookies, ice cream, and candies even if it is organic, and what you're eating is mostly empty calories with a great deal of sugar. Granted it's better quality sugar, but it's still sugar.
Now true, you could argue that something like a Dagoba Organic Dark Chocolate with Hemp, Pumpkin, and Sunflower Seeds is healthy for you because dark chocolate has been proven to have health benefits because of the flavanoids, and the seeds contain protein and good MUFA's that we all need. However, it's still sugar and fat. The bar is not a replacement for nutritionally packed foods like vegetables, fruits, grains, and proteins from meat and beans.
With the all natural or organic versions of junk foods, the benefits that you are getting is the elimination of things like artificial sweeteners, preservatives, fillers, artificial food coloring, high fructose corn syrup, MSG, trans fats, and ingredients that basically sound like a chemistry experiment. In that sense, having a cleaner junk food option is better than the overly processed version, but still, it does not mean it's healthier for you overall because again you need the nutrient packed foods that best come from Mother Nature.
What I find interesting is that the bulk food manufacturers typically add all those what I call fake ingredients in to make their foods taste, look, and last longer. To me, the all natural and organic junk foods I've had actually tasted better and looked fine. See, doesn't that organic chocolate chip cookie in the picture above look divine? As for the need for preservatives, junk foods usually are not lingering in the pantry for very long, and definitely not in my house, so why put them in?
The key is balance and viewing junk foods as treats to indulge on occasion.