Unfortunately, those are very common responses. In the case of the picture you posted, you also would get "She's young; she won't understand it, so we'll just get rid of the older kid and she'll be fine." Obviously -- she's not.
It's also important to realize that most people will know that they've done something wrong -- but don't perceive themselves as a "criminal" or "rapist", and don't want to see themselves that way. They'll rationalize or justify their actions as "she asked for it" or "she could have said no" or hang on technicalities like "I didn't rape her; I just...." If you watch TV shows like Mystery Diner or some of the shows that catch employees doing things wrong, and see how strong the urge to deny or minimize their actions there are -- think how much stronger that urge is going to be for something like a rape or sexual assault!