the less knowledge one has, the more prone one is to errors of judgement
How does one measure the type, quality and quantity of knowledge required to meet your criterion ?
basically all religions work on identical principles, just like all sciences work on identical principles - there may be differences in details (like say between geology and biology) but the ethical practices are the same - IOW god is not a religious fanatic and spiritual life communicates on the platform of purity and not ecclesiastical hair splitting
I feel you are confusing religion with ethics.
A broad mind is only valuable if it is accompanied by a good sense of discrimination - otherwise indecision clouds the vision
How does one acquire a good sense of discrimination and how does one knoew onw has it ?