More often than not, a beautifully designed piece of software will be easy to use, intuitive, and full of surprises. It makes me want to install it because I _know_ that I'm in for a treat. And when I launch it, my suspicions are confirmed with an app that works exactly as expected without hassle or surprise. Good design is a side-effect of lovingly crafted code and a well-thought out process.
This is because "beautiful" designs help fosters a positive attitude between the users and the product. This then translate to feeling of affection, loyalty, and patience in the product -- all of which are critical factors in long-term usability and overall success of a design.
Its a well documented cognitive/psychological phenomenon. "Design of Emotional Things" dedicated an entire chapter to this concept.
Fart apps were wildly successful too.
If your idea is truly as revolutionary and unique as you think, it could probably look like shit and still be popular.
Oink is interesting and beautiful, Kevin Rose is smart and decent. Your app is neither and you sound bitter. It is not surprising to an objective observer that you were ignored.
A little more humility might allow you to learn some lessons here.