I’m looking for a word or words to describe a person who dislikes incompetence (when someone can’t do a job successfully), or those they deem ineffective in their work. It would also especially irk them if the person won’t admit that they are incompetent/ineffective.
He does not suffer fools gladly.
not suffer fools gladly PHRASE
Be impatient or intolerant toward people one regards as foolish or unintelligent.
‘he was a perfectionist who didn’t suffer fools gladly’
With biblical allusion to 2 Cor. 11:19.