Without knowing about the particulars, I would say: yes. IT jobs in non-IT related companies are more or less dead end jobs, it's seen as a cost rather than pro

Without knowing about the particulars, I would say: yes. IT jobs in non-IT related companies are more or less dead end jobs, it's seen as a cost rather than profit center so you can be sure someone is working in replacing your job already (either by hiring consultants or automation, SaaS, PaaS, ...). That said, in some specific circumstances, when you're the right-hand of the C-levels, it may pay off. But you have to marry the technical expertise with executive skills to move up, so they can see you as "one of them" and justify above market salary and/or promotions.