Part of this has to do with the fact that many of the media decision-makers are white men who somehow relate to these women as being their wives, daughters or sisters.
It is simply the reality that white media executives, based on their view of the world, react differently to the cases of whites than minorities.
Well, yes. It probably does have something to do with representation. Not long ago, I heard a class presentation given by a black girl, who was concerned about the ratio of unemployed blacks versus unemployed whites--until she made the realization of the difference of education levels. Since the ratio of most minorities with post-secondary education is not as high as that of whites, it follows that those with mass media education would include a higher ratio of whites, whose frame of reference includes other whites. Same as the Government, which if anyone is noticing, is becoming more diverse as minorities receive more education.