I'm sorry my opinion differs from yours.
As a working professional, I had images used without permission all the time. I still do. If I spent the time chasing down every instance of one of my images being used illegally, I would never take another photograph again.
To give you an idea of the extent of the problem, save this image, and drag it into Google Image search to judge the extent of the problem.
https://dl.dropboxusercontent.com/u/23953768/st200-seaview-cafe.jpg
I've had this image removed from so many websites you wouldn't believe it! It keeps cropping up all the time, no matter what lengths I go to in order to prevent it. To remove it would be like painting the forth bridge.
This is just one of hundreds of commercial images I have taken that are used illegally every single day.
The money and time I'd need to expend in order to remove them all would VASTLY outstrip any paltry lost revenue from such crappy websites.