Only time that answer is different is when a person in power is still around and they pretty much veto the engagement with a consulting company.
Their reputation doesn’t come from the quality of their work but their size: they can just muscle their way in.
It is also quite difficult to surface useful information amongst all the noise in the giant archive of documents
But as an SWE at a manufacturing company, how much can your work increase their revenue/profit? The bulk of their income is still coming from the widget/commodity they are producing.
A seasoned cheme at oil and gas was easily pulling 300k + 2M pension + 10% 401k match
For chemical or mechanical engineers they need a lot of infrastructure to do work so employees are more locked to employers and wages are not as competitive. Employees are unable to capture their value without the employer therefore they get a smaller piece.
Also SV has an obsession with hiring the best while most large manufacturers consider heads interchangeable with only a few spots reserved for top talent.
So most of the requests are insipid, some are impossible, and they have no desire to spend effort to understand either.
They don't improve how things run.
However: 1. The costs are insane and probably we reached the point where the benefits do not justify the prices they are charging. 2. Wfh is a cheat code to get access to cheap tech personnel that is pissed with the RTO of big tech. I keep hearing tech folks working at traditional manufacturing shops remotely these days.