that you do not get my point, it is basic a bad woman engineer may construct a buildinig with weak foundations and after some years this building fall down and many people die, isn't this weak construction considered as a harm to the humanity? (same applies for a man who is bad construction engineer)
same thing for a mathematics professor who is explaing the math theory wrongly will let the students with a poor mathmatics foundation.
My question to you Miss Mimi:
1. Do all professors have the same level of transfering the information to their students?
2. Do all drivers who drive their cars drive safely with no accidents?
3. Do all students who finish their college do not cheat?
4. Do all criminals and thiefs serunder them selfs to police?