Objectification of women results in lack of empathy. Sexualized representations, especially the emphasis of secondary sexual characteristics, can change the way we perceive an individual. Researchers have shown that empathic feelings and brain responses are reduced when we observe the emotions of sexualized women. Source 9q.
In other words men are being trained to be this way through what the media shows as acceptable behavior or maybe even men misinterpret fantasy playing with real life. Its not the same. Women are more than objects of desire.
With the media showing this is ok, the fashion industry showing this is what one must do it makes it hard for many people to understand just how to talk to women. While women are cute and nice to look at one must remember that they are still human and have the same feelings as men and need to be treated as equal to men. They are not a inferior copy of men but a source of strength that men can draw upon.