Mr Rossman will literally tell you to use an ad-blocker to watch his videos and refuses to take sponsorships, actively does not want money from making YouTube videos and just wants to get the word out. I'd agree with you if it was literally any other creator.
Two things can be true at once, especially when talking about people’s behaviour. I don’t know this guy from atom, but if he’s a YouTuber then my instinct is to not trust him.
Louis Rossman does not take sponsorships, and turns off ads for his videos as much as YouTube allows. His videos are for his opinions, not making money.