I'd agree with everyone who answered before me. I'm wondering however if of this isn't more of a sign of the times? Being we have the technology to make music using electronics it's not difficult to make practically any one look talented. It's now become the process we enjoy. The talent is no longer from the musician it's the people behind the scenes.
I believe it is because most musicians are not made to study music and music theory, before embarking on a music career. It is the same for writers, children are no longer required to read the classics, so there are very few excellent writers these days. It all comes down to education and training. Whether we like it or not, learning the basics in writing or music, gives us a base from which to work.
Agree with all above but I would add its also about merchandizing ... selling stuff with pictures of the so-called singers' pretty faces, like JB and 1D, they're on book bags and backpacks and lunchboxes and pillow cases etc etc etc it's all about separating tween girls from their parents' money. But there are still some talented bands out there, you just have to search for them.
Technology has leveled the playing field, for good and bad. It's so freaking easy to record a professional-quality record that anybody can do it, and that includes talented people without the connections previously necessary to get a contract, and thus secure recording, marketing, and distribution. It also includes total hacks, and they also have auto-tune. Like Tony said, you have to look. The leveled playing field has resulted in a deluge of recorded music undreamed of before digital recording technology and the Internet. Now, I would argue, though there is some good stuff out there, none of it is really new. It all reminds me of earlier recordings that were inspired by the same muse.