Just by being the person with the CIO job you change things. 

Your  department looks up to you for guidance in how they are supposed to  behave. What a lot of people in the CIO position don’t realize is that  within the IT department, all the way down the line of command, people are watching you.  If you behave well, then they will behave well. If you behave poorly,  then they’ll see it as a green light and they will behave poorly. 

This can all have some very serious consequences.