As a culture, we then to stigmatize certain sexual acts or behaviors. If a person's sexual templates and related behaviors lie in the less understood, acceptable, or unforgivable realms, recovery can prove even more of a challenge. The associated shame makes it that much more difficult to own, talk about, treat, or heal. I am not saying that we should condone such behavior, but that we should educate ourselves about the compulsiveness that generate it.
Voyeurs are aroused through the visual stimulation, and voyeurism is a passiveness-aggressive acting out behavior. This kind of passivity-cloaking aggression originates at the time of the original childhood wounding, when the child's angry reaction to abuse needed to be camouflaged as as not to invite further abuse. Passive-aggressive is a common trait in most acting out behaviors, because such behaviors seek to replicate the conditions under which the original wounding took place -- with one critical change: The victim of the original abuse becomes the perpetrator. He seeks the power and control he did not have as a child, which he delusionally believes, will bring him pleasure and safety.