I look at it differently, everything used to be hobbled together messes without real consideration for running live. Then when you go to scale, you had to redo the whole thing because it's base architecture was garbage. This is going to sound dumb, but the philosophy behind DevOps creates an environment that encourages building extensible systems that hopefully will not require taking a fucking sledge hammer to the systems to upgrade when you get users. My role in particular would require time from a dev from each team and a SysAdmin that understands software and OS at a low levell. That is really inefficient and has communication gaps.