One of my biggest disappointments: "highly intelligent" people

They promise a lot and deliver little... Especially in emotional and rational terms.

My personal experience and my general impression of these people, who are recognized as highly intelligent by conventional criteria, have not been good. Because I've expected them to be more rational or sensible, creative, and emotionally intelligent. In short, according to the very concept of human intelligence, present in any dictionary. However, at least in my experience and also based on my observations of typically "high IQ" groups, what I've noticed is the opposite of what is expected of those who are socially considered the "most intelligent." If, instead of sensibility, I've perceived in them a strong attraction or vulnerability to ideological indoctrination, and this usually means an excessive attachment to irrational beliefs; Instead of creativity, I've noticed in them a tendency toward cognitive rigidity, as they seem more tacitly intolerant or incapable of dealing with dissenting opinions. Perhaps they lack a fully developed capacity for self-criticism, which isn't limited to a less than objective and impartial self-reflection and which, in turn, results in a constant appeal to rationalizing thoughts and actions, including their own mistakes. And, finally, a sense of a tendency toward coldness or emotional imbalance among them, that is, a limited capacity to understand personal or emotional contexts, of others and of themselves, which makes their social relationships more difficult. Ultimately, I've noticed in them (qualitative) variations of the same phenomenon: stupidity, which, in theory, one wouldn't expect to see more frequently in the group considered the "most intelligent." Scientists/academics, journalists, teachers, high-level artists...