I've been reading up on the objectification of women lately. It's hard to put it in words but I believe this author nails it when she says:
"In conclusion, imagine a table. A table is a collection of molecules-- truly an object. It does not care if you look at it, compare it negatively to other tables, pick it up, or even damage it. a woman, however, is both an object and a subject. Like a table, she is a collection of molecules that can be looked at or damaged-- but unlike a table, she cares. When society reduces human beings to the status of tables, the humans are bound to get hurt."