There are two possible explanation to this phenomenon come to mind. Either everyone is stupid zombie, and you’re the only one smart, intelligent, capable, uniquely so. Or, you, like a significant portion of non-qualified interviewers, suck at conducting the interview process which gives you an illusion that everyone is stupid and you’re smart, and you don’t want to do anything about it because being uniquely smart gives you good feelings that you don’t want to shatter.