While the trust system is far from perfect, there isn't a significant amount of abuse on any level. Any system gets misused to some extent. As long as the amount of misuse is insignificant, it is acceptable.
DT misuse is not insignificant and not acceptable. Even if it was insignificant, it wouldn't be acceptable. DT should be removed.
I agree, there should be NO ROOM for abuse in a system that controls the behaviour of others.
Remove the opportunity to abuse or may huge efforts to do so or remove the system of control.