Although I suspect what's also happening is the
image that we see
there is low quality, and you'd need permission to get a higher
quality, printable version. And they'd never give permission to cc-sa
it.
Copyright doesn't work like that. An image is not copyrighted by itself, a
"work" is, and most people would not consider an image that is simply
resized to be an entirely different work to the original. Therefore,
licensing a resized version differently to a higher quality original (or
whatever) is simply not possible
Also:
"The requirement for permission to publish is based on ownership, not
copyright"
Does ownership actually allow you to supersede copyright like this? Surely
not.
- Chris