Raul Miller wrote:
If doing nothing is neutral, then doing nothing when someone needs help is neutral.
Yes, I have to agree with you: doing nothing when someone needs help and I am able[1] to help is non-ethical.
The "unethical behavior" you've been criticizing is doing nothing when someone asks for help.
It does, you should read example carefuly. There are a lot of other cases, including the one you are talking about. But please, be patient let's finish this one, before we jump to the next.
1. For example, if I am busy with helping person 'B', I can reject to help at the same time person 'A'.
-- Best regards, Sergey Spiridonov