Issues with Marta

Rating: 4/10 (7 February 2020)

I have no problems with the plot, even though it is overly simplified to the point of cartoonish as many have pointed out.
I have a problem with the character Marta. For a character that is supposed to be the ideal "good" she is certainly not and Rian Johnson does not understand what "good" is. An entirely "good" character would have to do good to be considered even close to being good. Marta does nothing of the sort. She plays the game Harlan's way (no matter what Blanc says), she tries to do everything the way Harlan wants even though she knows what she is doing is wrong and that is not the doings of a "good person." Her character is supposed to be an angel who is the only truthful person around, who can't even lie without puking. But, she does lie and hide her puking. She also actively, willingly hides the truth till the end. If she were a perfectly good character, then she would not have hidden the truth, going to great lengths.
The writer does not understand that there is no difference between actively hiding the truth and lying. Marta is a selfish person who looks for her or her family's benefit. If there is self-interest, there can be no "good." If there is "good," there can be no self-interest. There is no difference between the Thrombey's looking out for their own and Marta looking out for her own. If one should be considered "bad" than the other is as well. And this is the case. This is why screenwriters should seek help from advisors of ethics when they try to write stories that make judgements about such subjects.