The reason system administrators have responsibility for installing and configuring software on production systems isn't because programmers don't know (or can'

The reason system administrators have responsibility for installing and configuring software on production systems isn't because programmers don't know (or can't learn) how to do it themselves. It's typically because production systems are multi-user with uptime SLAs, meaning that software must be installed and configured in a reliable, repeatable way that works for everyone, not just one person. The fact that sysadmins do often have that responsibility, though, means that sometimes programmers have less incentive to learn it themselves.