The whole reason that the term ‘master craftsman’ exists, is to distinguish those people who take their craft beyond that of others. If everyone could build software to the same standards at the same speed, then we would all be machines!
Large projects are (and always have been) about managing large numbers of people with greatly differing skill levels, personalities and idiosyncracies.
It’s unreasonable to assume that what you can achieve with a small team of highly skilled, highly self-motivated individuals can necessarily be scaled up to larger teams, even with a in-house framework of standards, guidelines, tools and best practices.
Programming is knowledge work, it just doesn’t scale like manufacturing.