You could call it "jerk control"—what companies do to prevent or prepare for the day an employee crosses the line and starts making racial, sexual or intimidating comments to a co-worker or subordinate. Solid anti-discrimination and abuse policies and complaint procedures have helped contractors prevail in many of the lawsuits filed against them.
Whether that has helped cleanse construction of abusive maltreatment is another matter, especially if you believe true change only comes with an overhaul of company values that goes beyond printed policies.