There is one important thing that the camera style settings do when shooting in RAW. They determine the image you see on the LCD display. If you have the style set to Landscape, your LCD will display an image which is oversaturated versus the image recorded on your memory card. Along with this, the histogram will reflect the Landscape setting which may give you a less accurate reading of highlights and shadows based on the jpeg algorithm. I found that Natural or Faithful provides a histogram that more accurately represents the RAW image, so I can push the exposure to its limits and be able to more accurately see on the LCD what I am actually getting.