It's a tricky one, but I think considering these issues of how people have ended up in such positions are really important when it comes to real 'diversity' and tolerance, how disparate peoples/belief systems can co-exist peacefully - the balance between critical thinking and open mindedness.
I suppose humility involves suspending judgement and being open and willing to listen and explore different viewpoints. Which means at least in part setting aside our own beliefs/views/judgements, even if temporarily. Maintaining awareness of our own ignorance, possible blindspots, prejudices. Does this leave us open to indoctrination and brainwashing? Or is it just a misunderstanding of what 'humility' really means?
The didactic model of learning that we are very familiar with and is mostly still used in our education system seems to encourage a total abnegation of one's own critical thinking and common sense - the model is of a student with an empty mind and a teacher pouring information/knowledge into them. We also see this quite often within religion, where recent 'converts' or would be converts want to give themselves up entirely to a new way of thinking, hand over power and decision making to a guru. (Unfortunately, of course there will always be people on the look out for exactly this kind of useful idiot.)
These hierarchical models of learning are very open to abuse, abuse of power, and perhaps also can lead to the kind of madness where presumably intelligent people can chant a mantra that is a clear and obvious oxymoron with apparently no qualms at all. (2 + 2 = 5, TWAW, etc)
A good teacher will encourage a student to ask questions, think for themselves, and not abandon common sense or their own knowledge and experiential learning. Is there space for this kind of approach within our institutions, or is it all based on power differentials and top-down models?
I don't know how clear this all is, I am thinking out loud here, I think that in the last few decades the internet and globalism has really pushed some of these crucial issues into more urgent positions!