Altought I have to say I’d like to make and see (or hear or experience) art made with sincerity and passion if is opposed to someone doing it just fakely - if one can have em all. 
I find all these talent shows on tv quite interesting in this respect. You see a variaty of people performing back to back. Some with and some without any formal education of whatever they are performing. It is hard to grasp what makes some excell and others dont. I found that the more sincere, humble performances are usually more interesting than technically highstanding boring ones.
If you really want to investigate what you personally find to be “soulful,” then simply do an experiment. Collect a large variety of images and then separate them into what you find to be soulful and what you find the opposite, and those that fall somewhere in the middle. Then you analyze the common traits in each group. Like I already said, the so-called intangible aren’t exactly intangible, just that most people don’t bother investigating and spending enough time understanding.
Yeah, well, interesting article about that:
[http://youarenotsosmart.com/2010/05/26/the-perils-of-introspection/](http://youarenotsosmart.com/2010/05/26/the-perils-of-introspection/)
You will most certainly claim that this method still has its merits and we will all end up with some (universal) truths...unfortunately, knowing what you know, you run another risk when you try:
http://youarenotsosmart.com/2010/06/23/confirmation-bias/
Ofcourse, if we all read the same literature we are bound to agree with you…funny thing the way the mind works…
I still remain at my stance that there is more to art than craftmanship. And that sincerity will help you develop your work. Your idea of developement is that of improving craftmanship; deconstructing truths about the craft. My idea is purely that, development; asking yourself the question, where can I go from where I stand now? Perhaps you`ll end up a perfect craftman with this method, perhaps you`ll grow into a whole other kind of artist...who knows. But thing is, doing it this way, you took your own road to destilling the artist you have inside yourself. And thus, you`ll be more true to yourself, and have seen different things along you path.
Now, you may call me ignorant for believing what I believe. I may call you narrowminded for what you believe...I`m not trying to bash you here, because I certainly respect what you have acomplished doing it you way. It`s just the way these two stances sortoff seem to mutually exclude eachother...