No matter the possible productivity gains, I won't use anything needing more than two hours just to get started (i.e. running a Hello World).
well that certainly helps frame your posts. In this case docker has a webpage that you can play around with. Maybe 10 minutes to get the basic idea.
I'm struggling to find out where your hostility comes from. It doesn't make your job disposable, which it sounds like where your fear comes from. Just because people can't come to you to get the ideal Debian server setup doesn't mean you are less valued.