Could you please give a firsthand account of an instance when a great engineer built a novel solution? I feel NIH syndrome is way more common cause for building things from the ground up
I've seen it at least ~10ish times in my pretty short career. I think you're maybe imagining someone building, like, "Linux from scratch". Novel solutions don't have to be that big; they just have to be novel.
Someone I worked with once went off on their own and implemented a test framework that solved a lot of the problems we've been having. They could have just written tests the normal way; they did it a different way; it was great. Someone else made a debugging tool that hooked into Python's introspection abilities and made flame graphs of the stack traces. Not exactly groundbreaking science but it was entirely "innovative" in the sense that no one expected or wanted that tool, yet it solved a real issue. Someone else made a JS library that abstracted out the problem of organizing these dynamic workflows on an internal-facing took. Small, but novel, and it organized the ideas in a way that made it possible to build on the abstractions later. For my part we had this chunk of business logic that was a pain to debug and I had the thought to factor it out into a standalone library that was completely testable at the interface. Not groundbreaking, but no one had thought to do it and it obsoleted the issues from before immediately. Etc.
If your job is anything more complicated than "feature implementation", there are chances for innovation left and right, and good engineers see and pursue them.
