I remember one large company I consulted for in the mid-aughts. Before I got there, they had an outage so severe it was on CNN and caused a short but notable dip in their stock price. By the time I got there, the ops people were absolutely dominant. All changes had to go through their review board, and woe be unto any project that they raised an eyebrow at.
Of course, the real problem was that developers were scheduled out 18 months in advance to work on a list of projects they hadn't been involved in estimating and where often they hadn't seen the code before being swapped onto the project. Dates were absolutely not allowed to slip, so it came out in frantic overwork, which meant a lot of bad/confusing code. Meaning more likelihood of failure and no time to think about systemic issues and impacts.