I think that can't be than and also, from the looks of it, once you have a negative trust , its a mark like a scar , like in real world even though your a change man, it will still be there until the end
besides negative trust is given to someone who is not trust worthy, removing that in a person , will put other persons in a wrong spot, its put there to make others aware that the person is not
trust worthy, and have to be catious on dealing with the person, or maybe keep distance with it