Most of the effort in the software business goes into the maintenance of code that already exists.
Windows favors multi-threading, which means that a service is implemented by one single process.
I don't expect an overnight change of all desktops to what the US Military used to call B3 level security. And even that would not stop users from shooting themselves into the foot.
For many people my software is something that you install and forget. I like to keep it that way.
