I don't understand that at all, tho_mas. My 5dm2 is set to Adobe RGB, and the C1 Base Characteristics ICC Profile is set to "Canon EOS-5D MkII Generic", but these values do noy make any sens in Adobe RGB:
"Dark Skin" patch gives me R83 G66 B51 (That makes maybe sens in ProPhotoRGB, which I use for output).
"Light Skin" patch reads R17 G15 B14 
"Red" is R13 G59 B39
For a detailed analysis of digital sensor colorimetry, see this article by
Doug Kerr. In your camera's raw file, the RGB values that are recorded represent the output of the RGB elements of the Bayer array. These values depend on the sensitivities of the elements to red, green and blue light and determine the color space of the sensor. Because of failure to meet the Luther-Ives conditions (see the article), Mr. Kerr argues that this is not a true color space such as ProPhotoRGB. However, a standard color matrix conversion can be used to convert from the camera space to a reference space such as CIE XYZ or directly to the working color space such as ProPhotoRGB.
If you set your camera to Adobe RGB, the preview on the LCD will be rendered into aRGB as would a JPEG output from the camera. However, the raw file will be recorded in terms of the camera space, and the file will merely be tagged with the intended Adobe space. If you use the camera maker's raw converter (DPP for Canon), the converter will read the tag and render into Adobe RGB. Other raw converters (such as Adobe Camera Raw) will ignore the tag, and it is up to the user to select the space for the rendered raw file.
In your instance, the Canon EOS-5D MkII Generic profile tells the raw converter how to convert from the native space of the camera to the chosen working space. Although I don't use C1, I would imagine that the RGB values are in terms of the chosen working space.
