Quote - My calibrated monitor does not make beauty out of shit, but prevents me from correcting any image itself for box and tube specific hardware flaws. As a result, the shitty shot looks the same on all calibrated whatever, even when viewed over the net.

Sure, but why does it look the same ? It's cause your image has been color corrected to a standard (sRGB most likely) and all displays that follow the same standard, know how to display the image properly, yes ? But note that a renderer is not a physical device, it has no faulty tubes or cheap LCDs that need to be compensated for. So when you take a photo that has this hardware correction in it, and plug it into something that doesn't need correcting, what should happen ?

If you're working with dumb tools, like poser was a few versions back, they would just read the 'fixed' colors of this photo (which the renderer doesn't actually need) and happily render out inaccurate color values. Smart tools like recent poser versions though will let you remove this hardware correction before rendering and thus render accurate colors. After which you can, if you want, apply the 'fix' back so that you again end up with a nice calibrated photo.

Of course poser is a low end tool so it doesn't do full sRGB calibration and you have to settle for basic GC instead, which works ok most of the time.