Churchill, writing in 1901 with advice clearly relevant for 2022:
Nothing would be more fatal than for the government of States to get into the hands of the experts. Expert knowledge is limited knowledge: and the unlimited ignorance of the plain man who knows only what hurts is a safer guide, than any vigorous direction of a specialised character. Why should you assume that all except doctors, engineers etc., are drones or worse?
To manage men, to explain difficult things to simple people, to reconcile opposite interests, to weigh the evidence of disputing experts, to deal with the clamorous emergency of the hour; are not these things in themselves worth the consideration and labour of a lifetime? If the Ruler is to be an expert in anything he should be an expert in everything; and that is plainly impossible. Wherefore I say from the dominion of all specialists (particularly military specialists) good Lord deliver us.
Hat tip: Richard Langworth.