Was what happen in and then there were none morale right?

(Now I shit you not this whole thought came when I was thinking about a youtubers named sssniperwolf who would put out low effort content and stole form another content creator could azzyland and convince her fan based that azzy stole from her, and when another youtubers called Jack films calls her out she convince her fan base that he is trying to destroy her career and then reviled his address to them and youtube did nothing to punish her)

But anyway that got me thinking about justice and then I thought about and then there were none was what the judge did morale right. Cause in murder on the orient express where the murderer killed a man who was responsible for the people they cared abouts deaths, they were doing it for the victims.

But the judge he didn't do this because he wanted to avenge the Victims of the 9 soliders, he did it because he wanted to kill people, sure bad people who might have desvered but like he didn't pick Vera because he wanted justice for cryil or Emily cause he wanted justice for Beatrice he just wanted to kill and to him the victims just seem like a means to a end for him.

And I feel a little bad for saying this but there kinda of had to be other people more evil then those nine he could have punished.

Anyway please tell me your thoughts.