This hits home the most in Industrial Engineering.
That field was not invented by academics, that was done by industry, and academia realized there was demand to teach it.
Getting a PhD in Industrial Engineering seemed like a contradiction. The studies my professors were pushing seemed useless and untestable. I tried to make suggestions towards my interests, using big data on life at home, or specific ergonomic issues were useful to every human alive.
When I left both my meetings with the professors, I realized I would be at their whim for the next 4-6 years.