One of my favorite metaphors for this situation involves the building at 44 Passage Rd.
It is squat, square, and takes up a whole block. In it labor 10,000 researchers, scientists and thinkers.
When you call the building at 44 Passage Rd., you connect to a receptionist. The building has so many departments, her job is to route you to roughly the right department, where you'll then be routed further.
On floor twelve, at the very top right corner, there is a publicist. If you call and you're from the government, press or civil agency, you talk to him. He summarizes everything the company is doing at once into a single statement.
He will tell you the "what" of what is going on. If you try to understand the how or why from his statement, you would be lost. You could then call each of the researchers who work on it. However, the flood of details then is too much and too discoordinated to be helpful to you.
Ego is essential. It is how we summarize action to explain to others and socialize. In the same sense, a view of self-esteem and of uniqueness and of personal pride and integrity is essential. This is not ego, but the ego is what explains it. The spokesperson is not the researchers, and the researchers are incoherent.
A sensible role for the ego can only be found when, like emotions, it is disciplined to (a) reality and (b) purpose. Otherwise, the human rambles about doing what is convenient and then justifies its actions by having its spokesperson invent some reasons "why" from the "what" is being done. This too is incoherent.