As a system administrator, you spend too much time working on your laundry list of tasks to keep everything a float. You need to find ways to "glue" together the holes in your sinking ship.
First, identify the problem areas. Next, see what is out there to help you get your task done. Accept that not every solution out there does exactly what you want. Finally, start rolling your own solutions, in Ruby, where they make sense.
Understand that, while Ruby is not the silver bullet for all your system administration needs, it does suffice in many areas and speeds up development of the seemingly endless pile of scripts needed to stay on top of things. The key is to not be afraid to reinvent a wheel here or there to get a better ride.