Programming is not just like being a car mechanic or factory floor engineer, its like being an expert driver at the same time.
When I use my desktop, it often occurs to me that I could write something to speed up a task, if only the application was accessible in a similar way to Emacs, or had Amiga-style ARexx ports that I could talk to in a script. From this perspective, programming is the most fine-grained GUI affordance within a computer system. By making it accessible along a continuum with simpler GUI tools, we greatly increase the ability of the user to do magic, or to learn to do it.
I would really like to see the development of an ergonomic expert-oriented desktop that lets me use my programming skills in a high-level and bureaucracy-free manner, to augment my use of an attractive and well-integrated GUI. There's no reason why such features should impinge on ordinary non-programmer use.