It's always been my understanding that RAW files were designed to be flat out of the camera - they were never meant to
not be processed. Cameras can produce colourful, vibrant JPGs according to whichever preset or custom setting you use in-camera, but if you shoot RAW, these presets are stripped, and the photo you see on computer will be flat... but chalk full of information, like a chunk of marble waiting to be carved into a statue - it's all there, but it takes some work to bring it out. Now, that doesn't mean you have to go crazy with post-production - simple contrast, vibrance, white balance and sharpness adjustments may be all you need, or want - and most programs will let you create a preset that you can use over and over again, to quickly process many files at once. This is essentially what your camera's JPG processor will do, but by shooting in RAW and processing manually, you have much more control over the entire process.