I think some of us "normal guys" would be proactive and intervene when something bad is happening to someone we care about or simply to someone we might not know but we have the opportunity to step in and help someone out. I think that would apply to the person who made that comment, otherwise it wouldn't bother him so much. Same with me, I definitely would speak up or physically intervene if I was witnessing something bad happening to someone.I think that's a fair perspective. I don't want him to be a main character, I want him to be you, "a normal guy". But I understand that you may want to do more than him.
In that specific case I felt like people would have wanted it to continue, so I didn't include an option to stop it.
But he is the narrative vehicle that pushes the story forward. If it weren't for him encouraging people to be themselves and supporting their every effort, the main characters could not be heroes. And that's the point of it, I want to show that being supportive is a good and enjoyable thing. Though it isn't for everyone I suppose.