Totally disagree - and - ideal scenario happens all the time.
Most of the time, in fact.
The level of lack of self awareness is really just staggering, as if these companies exist and claim billions in revenues, over, over and over again by the same customers ... by 'not doing anything useful'.
It's really an embarrassing posture.
'Management Consulting' is one of those things that is just culturally orthogonal to HN. There's a derision combined with a total lack of understanding, and so it ends up being a difficult thing to debate, like going against consensus on a reddit board.
They're' about as problematic as basically any other type of organization, aka we can loathe Google for all sorts of reasons, but they still do many things well, we mostly use them for various things.