Not sure about giant Amazon sized companies, but I think the medium sized company (~600 employees) might share some similarities. At the lower end of the ladde

Not sure about giant Amazon sized companies, but I think the medium sized company (~600 employees) might share some similarities. At the lower end of the ladder you have worker grunts. Some of these grunts do base level work, so do more long term thinking, and some do a combination of the two. Then you have lower and middle management which have their own priorities and then at the top your executives which also have objectives and goals. An efficient organization has the right people at each step of the pyramid. In reality you have good and bad engineers and good and bad management. When things are working, problems I identify in the technical realm are understood by my superiors and relayed up the chain. Things they notice at their level of the organization (key stakeholder interaction occurrs here) is also prioritized. Besides some major initiatives led by the executive team, I see their key role as administrative and working on the organization instead of in the organization if that makes sense. Educating upwards is one of the hardest problems in all companies past a certain size.