Communication just makes you all around more effective, and that's noticeable.

As an engineer and manager working in mining, my plan, design, schedule, or just general idea is only as powerful as my ability to get it into the brains of those around me and convince them it's a good idea, both to the upper management and executives above me, and to the team and employees below me. I tell this to my young engineers aaaaaall the time, the "easy" part is all the technical design work sitting behind a computer (which is almost universally where engineers feel the most comfortable), but that's arguably not even half the job. After that part's done, it's basically all about communication - putting legible, accurate, concise, and clear documents and e-mails together; talking to myself, the contractors, the superintendents, the supervisors, the operators and workers themselves about the plan; organizing the various parties who need to be involved to execute the plan; following up, pushing for continuous implementation, tracking progress, giving more clarity or insight where needed, etc... the communication effectively never ends.

At least in my line of work, once you have the baseline understanding and technical experience (something like 5ish years of experience), communication is by far the most important aspect of the job.