Interestingly, individual beliefs really aren’t that indicative of anything but the viability of the individual belief itself. Believing that a purple rhinoceros mated with the moon to produce the Earth’s sky doesn’t mean that some other belief is, purely by association, misguided or faulty. That is a bit of a classic “composition fallacy,” and can quickly lead to converse errors. Of more import, IMO, are the values, virtues and resulting ethos that a coherent and cohesive body of beliefs consistently support and inspire. That is, for me it is more about the aims
of a hierarchy of beliefs - and whether that hierarchy constructively reinforces and enables those aims.
But first, why are coherence and cohesion important? Only in that, over time, if the belief and values hierarchies are rife with contradictions, inaccuracies, fallacies, etc. we can observe this will likely encourage an authoritative, dogmatic orthodoxy - one that seeks to remedy an otherwise ever-enlarging cognitive dissonance, and often becomes institutionalized. In other words, in response to an inherent instability in those hierarchies, its proponents can become more and more rigid, legalistic and controlling of each other, and in increasingly harmful ways. It is an understandable human reflex - though not a particularly attractive one - to avoid questioning if those questions can quickly undress core beliefs or undermine the structure and interdependence of a given set of values - especially if this then destabilizes social cohesion or personal status.
Also, the issue of emphasis is important. I’ve used the term hierarchy
to specifically call this out. There are core values and core beliefs that are often intimately related, and tend to be grounded in human relationships and interdependence. For example, if I love my father and observe that - in our family at least - his role is to protect my family and materially provide for them, then it is much easier to cultivate a core belief that he is somehow deserving of that role, and that a “father” is in fact defined by these responsibilities. In this way values and virtues like loyalty, respect, obedience, self-sacrifice and so forth can quickly fall into place as consequences
of those core assumptions and experiences. Once this is then observed and agreed upon within a community, supportive beliefs and values - and their cohesive and coherent hierarchy - can become generalized and self-perpetuating.
But what if, at some point, I ask my father where the sky came from, and he tells me about the purple rhino? If I accept the story, it is incorporated into my belief hierarchy…but far down the chain.
It’s veracity is dependent on a very large tree of branching beliefs that are rooted in my love for my father and acceptance of his role in my life. Believing in the purple rhino - misguided as it may be - in no way dilutes the importance and operational basis of all the beliefs that came before it. It would only become problematic if I then inverted
the belief and values hierarchy, and placed ritual and dogma regarding the purple rhino (or some other core belief or value not grounded in relationship) above my love for my father. This inversion is warned against in most religions. For example, that is the essence of the teaching in 1 John 4 “If anyone says, ‘I love God,’ and hates his brother, he is a liar; for he who does not love his brother whom he has seen cannot love God whom he has not seen.” And of course warnings against dogmatic inversions is a central theme of the New Testament narrative as a whole. More importantly, if a given belief or value isn’t facilitative of a given core set, it’s going to become vestigial or be entirely discarded…eventually. We might call this “pruning the belief tree.”
Circling back to the central question, then, I would recast it in the terms I’ve just described. Are the hierarchies consistent and coherent? Do they align with subjective and observed experiences? Do they facilitate core beliefs and values that have arisen from - and are intrinsic to - human relationship? Viewed as a whole, does a given belief and values system actualize and sustain itself, synthesizing outcomes that reinforce and amplify core beliefs and core values in its final ethos? If not, then there will be “misguided” consequences.
My 2 cents.
From Quora: https://www.quora.com/What-specific-beliefs-in-a-religion-would-tend-to-indicate-that-its-other-beliefs-are-misguided/answer/T-Collins-Logan