I think this is where photography moves beyond right-vs-wrong, or where advice on how to shoot and process ends and the artist's own personal desire kicks in. I certainly don't feel that someone's preference for 'corrected' white balance or my own preference for 'true-to-my-vision' white balance are right or wrong...just personal preference. I've always been fond of color cast in light - so 'correcting' white balance to restore true whites is not something I typically prefer - if a scene is lit by a setting sun, it looks yellow or orange or red even to the eye when standing there - so that's the color cast I prefer to keep in my whites. If I'm standing under moonlight, whites tend to look more blue - so I like to keep them that way. And various lighting styles (fluorescent, sodium vapor, incandescent, etc) all cast their own colors onto a scene - a page I'm reading on white paper may not look white to my eye because of the influence of the color the bulb is casting. So I've always preferred to capture the image how I felt I was seeing it, even if not technically or measurably correct (ie: white is white). Others much prefer to see all of the colors true at all times - they don't like the color cast influence that different bulbs and different lighting cause, so they rid the scene of that artificial influence and prefer to see whites in their true color, and all other colors of the palette correctly rendered without the color cast changing them. Again, no right or wrong - just artistic preferences!
Indeed, JPG is if anything a little more difficult to get right - strange as it sounds...because you do not have as much latitude to fix it up later, JPG requires a bit more attention to settings, a bit more work before you shoot to consider the limitations of processing afterwards, needing to control highlights and set white balance as desired, and even use some of the JPG-exclusive tools to make up for what you can't do later, like HDR stacking. With RAW, as long as you don't mind spending the time working on the shot, you don't have to think about as many things at the outset of the shot - you have much more room to reign in highlights, can set white balance later, and can process the same shot for highlights and shadows and do your own HDR blending...RAW requires more time and work afterwards on the computer, but by the same measure can allow one to spend less time thinking out the settings and the shot beforehand. Not to say that all RAW shooters don't choose the right settings and plan out their shots, but RAW shooters COULD be more careless if they wanted to and still get good results later, whereas JPG shooters have to get it right initially to get good results.