I suspect because it kills creativity. It's the same in the software industry because engineering has a big component of creativity but organizations structure

I suspect because it kills creativity. It's the same in the software industry because engineering has a big component of creativity but organizations structure themselves in a way that minimizes this creativity and maximizes managerial control. I'm not saying having an army of managers is necessarily bad, but it does tend to create bad software because engineers are heavily constrained in this structure.