I'm less concerned about "justified" and more about "useful". If you behave offensively to everyone around you, then you have become your own worst enemy in the war of ideas.
Ignaz Semmelweis was right. He also died in an asylum, having utterly failed to convince doctors to wash their hands between patients.
What do you think Semmelweis could have done differently, that actually could have worked?
The assumption in what you’re saying is that it’s possible to convince ignorant, recalcitrant, authority-rejecting people to change their behavior. That’s great! Could you sketch an approach to get people to seriously try to solve global warming, then? No? How about fascism? No? So, what is your point, exactly?
Well, he could have done what Pasteur or Koch did and become a pivotal figure in inventing germ theory.
He could also have just lived out his life in obscurity and made things a little better in his hospital, doing what he could and quietly regretting that he couldn't change everyone's mind, until the emergence of germ theory.
Instead, he got beaten to death by asylum guards after annoying and alienating everyone around him. That seems like a very obvious bad ending to me.
I can't sketch out an approach to make the entire global population to listen to you. I can, however, warn you that being a gigantic douchebag to all your colleagues will not make them take your proposals seriously.
Ignaz Semmelweis was right. He also died in an asylum, having utterly failed to convince doctors to wash their hands between patients.