so I guess I'm having this problem because I care too much about the new people? should I just ignore them occasionally? I want people to at least get the basic movement right so that Sensei won't need to lecture them too much. he does that, btw.
If sensei is teaching and leading class then it is his job to teach and to correct not yours. Sometimes people make mistakes. Often they learn from them.
You have not answered any of my questions.