One of the problems with the night sky is that most stuff actually looks bland to the human eye. Check out the examples below of the Orion Nebula as it would look to the human eye through a telescope (left image) - I had to do this with Photoshop to simulate it (let it go) - and how it looks to a digital camera through a telescope, plus some processing work (right image).
As you can see, there is so much more detail in the enhanced image. This not only makes it look prettier, but more importantly it allows scientists to learn and deduce so much more about the object under study.
It's probably surprising to learn that the human eye isn't the most efficient collector of light and that these enhanced images are much more representative of reality than our dodgy eyes can show us.
So really, should we complain? I think not. After all, nearly every image of the universe released by NASA or indeed anyone (even me) has more than likely had something done to it; be it to sharpen it up a little, remove bits of dust on the lens, bring out more detail or even to correct for a slight misalignment of individual color images.