If you do not understand the language of business, please refrain from commenting on it. Referring to IT as an overhead was a comment made in that context and is precisely correct, even if it does not fit with your (incorrect in that context) worldview.
Or perhaps it's the MBA worldview that not only do they know better than people who actually do the job, but they can arrogantly tell them to refrain from commenting on it, that is the root cause of all these issues in many industries, not just aviation.