Swings and roundabouts
It's an old cartoon, older than the internet, but still sums up the world of IT just as well as when I first saw this 30 <ahem> years ago.
http://www.businessballs.com/treeswing.htm
Apropos the question the governor or the governed
The answer is: both. IT has a parasitic relationship with "the business". Neither side can exist without the other, which is probably why both sides hold each other in such disdain.