Really?
This from an expert on rape talking about the serial rapist preying on men in Texas: "A serial rapist is more likely to have a conscience. Otherwise they'd take the life and silence the victim."
Let's see, someone who forces other men to have sex against their well, stigmatize them, and mark them for life has a conscience. Someone who attacks other people in one of the most heinous and degrading ways has a conscience. Maybe they're not as bad as murderers, but let's not go as far to say that they have a conscience. Because if they did they wouldn't be committing rape in the first place.