There is certainly a dicotomy here. On one side the pros loosing market, on the other newbies wanting a piece of it. However, if many give in to promote their work, the market gets diluted and everyone, but photobuyers, loose. As Joe (kelpfish) pointed out, this stems from a basic concept of supply of demand, which, of course, is not restricted to photography. So what do other professional classes do to keep their standard (and $)? ...some make unions, some impose regulations, etc...
However, this seems an almost impossible task with a professional practice that most often derives from hobby/vacation/fun to begin with.... and will likely result in pro UW photographers having to work even harder to make ends meet.
Andre