I've long back realized that it is not just the big corps, but every employee of a company, after a while began to think everything outwards. Their focus, the work, they playbook always from them. There are only a very few that things from outside.

During my consultation, the team I was helping keep talking about "Our App", "Our Process", "Our Use", "How do we get this data into our System?" I had to ask them multiple times, "How does your users or customers outside of your company uses them?" "Have you thought of how people usually do these kind of steps?"

Exactly. That's their default mode of thinking.