Fucking your brother's widow with the kids down the hall, filming the acts, uploading them to Pornhub, and getting her hooked on crack...those are the actions of a profoundly evil individual. You can't blame the drugs for that kind of filthy behavior. Probably would have done him some good to send him to prison.
He's been protected and coddled and showered with undeserved cash his entire life. Look what that did to him. Joe bears some heavy responsibility for how it all turned out.