I don't think that Khoun Dang is being mean and racist or discriminating against Kwan..despite her bad rumors and reputations, it already made her look bad enough. And in the entertainment industry, if you are in the spot light of being a trouble-maker, nobody really wants to get involve with you much. Now, I'm not saying this becuz I dislike Kwan, but that's the fact. You see stars from the past already that went through troubles and they got suspended, or kick out, heck or was depromoted to play small roles only(even though you are talented and has the potential to rise).
In conclusion, you have to present yourself well in front of everyone. There's eyes everywhere looking and waiting for you to slip out one mistake to get you to fall. I understand that celebrities are human-beings, but when you're in the entertainment industry, your job is to entertain the people and the spotlight will always be on you..you will have no privacy..in other words, there is advantages and disadvantages.