"The state board responsible for licensing - and disciplining - psychologists in Louisiana is 'fighting awfully hard to turn a blind eye to serious allegations of abuse' brought against one of its members, who is being accused of complicity in beatings, religious and sexual humiliation, rape threats and painful body positions during his service as a senior adviser on interrogations for the US military in Guantanamo Bay and Abu Ghraib."
Psychologists are people too. Like anyone else, some psychologists may have trouble standing up to authority figures. Some may have trouble saying "no" to co-workers (i.e., standing firm against peer pressure). And some may simply and secretly get a thrill from watching the sadistic acts of others.