Sure. I do not mind if people hold views that I disagree with, and I am very appreciative of anyone who chooses to donate some of their time and effort to moderation.
If someone abuses moderation powers to disrupt a local community, let me know and I'll try to understand the situation, have a chat with them, or possibly remove them if the situation does get out of hand. I am quite receptive to specific reports of specific actions, but I am not going to micro-manage users or mods and make assumptions/predictions about potential future behavior.
To be specific, in the context of moderating a "public health" community...
Acceptable: Mod or user posts often scientific articles discussing some positive relationship between the health in communities and eating meat. The user/mod may be biased to post articles that conform to their belief/opinion. If the content they post is high-quality and relevant to public health, and they do not overload the community with this single topic, then it is not a problem. Users are free to contribute on-topic however they'd like.
Unacceptable: Moderator removes posts about peer-reviewed scientific articles about public health benefits of vegan diets, a reasonable paper pointing out a risk in meat-eating diets, or bans users who make comments arguing against the conclusions or validity of a paper simply because the paper conforms to the mod's beliefs.
I think this is reasonable.