I get the impression that you perceive building a "framework" as a self-aggrandising exercise created for the sole purpose of standardising software development into creating run-of-the-mill products. Such view would be too hard on the not-so-trivial amount of effort that goes into creating a framework that can be applied to a broad range of use-cases, far beyond what it was originally conceived for.

In fact, the truth is that it is too easy in programming to skip the painstaking effort of reading and adapting to someone else's codebase. It is simply convenient to throw everything away and start from scratch embracing the (in)famous "Not Invented Here" syndrome.