A major problem that leads to dysfunctional bloat is the inherent ego traps of software developed by teams of well-adjusted people.

Even if it's for the good of the quality of a product, it is not often easy telling your team mate that they wrote an unnecessary component that should just be deleted. I have done it lots in my short career (and in terms of engineering outcomes, it's been spectacular), but it's easier for me I think, since I'm more disagreeable than the average person.