Altruism works toward the good of all as a collective unit. Ego separates evil impulses thus minimizes it longevity and strength. It divides and conquers evil so that collectively evil cannot ultimately rule. Is it possible Genesis 11:6 is reflecting this?
The ego is necessary for the success of Altruism. The ego is meant to be subjugated not do the subjugating. The tail is not to wag the dog. Each Individual is meant to be an expression of the soul and meant to carry out a specific purpose that will eventually force altruism to win. Without the ego none of this would happen.
When speaking of the ego we typically think of its extreme and excess. However, in a measured and controlled way, we can find use for the ego that will benefit creation. As is usually the case, we humans tend to go overboard and forget the need for balance. The collective cannot over power the individual, in terms of purpose, and the individual cannot over power the collective.
Ask yourself: Contemplate the above thoughts. How do we set out to create the proper balance?