It is not true that the professor "ignored" copyright law as implied in the article; in fact she was fully aware of it as evidenced by her belated attempt to contact the photographer. She found copyright law INCONVENIENT when she heard the price.
Here is what happened (I guarantee) - student produces poster with "found" photograph, professor discovers after the fact that it is not a public-domain image, gets nervous, contacts photographer, hears price she doesn't like, decides to ignore the whole issue and hopes it goes away.
Randy
The difference between the market and the law is precisely what fuels copyright violations in the first place. In a world of 100% copy utility the price of a unique work that can be indefinitely reproduced falls proportionately to its mass appeal.
Technically, much copy and paste functions and "quotes" are violations. The law is bent into a pretzel to allow such transgressions, but there are no firm boundaries because there is no market nor legal consensus on exactly where those lie as lawsuits--mostly futile--attest.
It is an analogous to caveat emptor. The buyer must protect themselves up front or the law bars them from not doing so through expensive court remedy afterwards.
Here, the copyright holder should protect themselves up front or suffer from infinite reproduction, difficult to trace, and almost impossible to collect revenues.
In this particular case, the inflexible "minimum fee of $250" appears to be completely out of line with:
1) The nature of the image's use in this context
2) The willingness of the consumer to pay that amount
3) The apparent (and stated) lack of bargaining
4) The cost of remedy or redress
In short, the "market" for trade of copyright materials is stunted right from the start. This is, in part, the copyright holder's fault. This should have been conveyed in the article. Note how the term "unauthorized" is in the negative. It is up to the copyright holder to "authorize" their works. It is not up to the end-user to verify authorship much less market compensation.
Requesting "immediate payment" of an item already in use without an up-front contract is simply poor protection, and instead tries to rely on moral suasion rather than sound business economics and a persistent knowledge of the law. Copyright is not passive; it must actively defended and protected by the producer. We do not ring-fence the free exchange of ideas but only allow those who produce to ring-fence
at their own cost their products. This was not done in this case and these are the consequences. To get to the heart of what occurred here one must step away from moral arguments and look at the value, the legal responsibilities, and the contracts (or lack thereof).