Due to it's nature, the web does not need nor often produce high-end professional content. Of course, we have professionals and amateurs supplying content for various reasons. That's the web, that's how it functions.
Amateurs have a place, as do the Pros. One major difference tho, cheap amateur content often replaces a requirement for professional content, and makes it much more difficult for Pros to earn a living producing quality visual products. Same thing happened to magazines and news media years ago. Everyone bought a digital, snapped a million images, got lucky every once in a while, and overwhelmed those Pros that worked hard to get product, and could not then, and still can't compete with an editor that accepts low-grade imaging -- the publish today content, then gone tomorrow content mentality as Inbox overflows when over the transom visual content arrives, and carries with it a mini-fee, if a fee at all. Some give it away just so -- 'Look mom, I got my photo / visual published, I must be a professional now' The artist behind a camera has become a technical mechanic instead.