I assume that sociopaths lack feeling or conscious. How would a sociopath experience being raped or abused? Would they find it any less traumatic than a person who was not a sociopath?
Sociopaths and Psychopaths are actually defined differently by the DSM-5. For practical understanding, we'll go with the simplest description of the two disorders for simplistic understand: A sociopath is someone who will harm others without regard so long as the outcome is to their desires, they serve themselves and will manipulate others to satisfy their own goals, and tend to be more introspective or alone, rather than commit to something such a relationship or other than a professional one. As for feelings, the closest a diagnosed individual with Sociopathy, or also known as Anti-Social Personality Disorder, is a marked negligence in financial obligations, or failure to adhere to them. In many ways, the Anti-Social Personality Disorder individual is much like the lone alpha wolf, who seeks really only to serve themselves in whatever capacity they can.
The DSM-5 classifies psychopaths as being able to feel, but only for themselves; their Modus Operandi is incredibly extreme, ranging from extreme highs to extreme lows, with an almost like inner monster compelling them to perform certain acts. Psychosis can come in a varying matter of degrees, and while they do feel, the primary feelings that most Psychotics will feel is rage or depression, and it is often rare when they feel the middle ground as it were.
Now to answer your question on how a sociopath would feel about being raped: It's unlikely they would report it. Statistically speaking, reports of rape are hard to garner due to society rammifications and how judgement will be pressured onto the individual. Add to that a mental disorder, and the individual, despite not caring, will still adapt and try to keep such a private and violating experience to themselves. Further, they will likely seek out revenge beyond the justice system, and likely engage in deviant behavior, as was displayed by the College study done in 1972.
People with Antisocial personality disorder do have feelings and some do have a moral conscious. They respond differently to traumatizing situations based on their type and severity of the disorder. The malevolent type would definitely have a desire and so fantasize to harm or kill the person who traumatized them. They may also like many normal people do repress the traumatizing memory and lie when confronted with the memory. Or become more ASPD and possibly even commit atrocities.
While the women in the following were not diagnosed with ASPD they had something similar so their actions can be taken into consideration: