While I won't enter the discussion directly, I want to point out that the arrogance thing is actually a side effect of us probably not transitioning completely into a higher state of consciousness. We will often say and do things only because our subconsciousness reacts to certain things in certain ways. While this is good, because our subconsciousness is supposed to protect us from "dangers" about which it learned over the years, it can also cause a lot of trouble. So our arrogance actually comes from our non-sapient ancestors, from a world where only the fittest survive. It's kind of ironic. If animals were sapient, they'd be arrogant as fuck.
Because of this I believe that one of our highest priorities should be understanding of oneself and one's subconsciousness and then altering it to better align it with our consciousness. 90% of the population goes through their everyday life, mostly interacting with the world only on an unconscious level even if there is no way anybody would admit that they are probably being mostly controlled by their emotions and subconsciousness (arrogance yet again, duh).
IMO our current state and huge conflict between consciousness and subconsciousness on a global scale makes no sense. I think that we are in the middle of a huge transition as a race to a higher state of consciousness, a better awareness of ourselves, the people around us and the world around us. I'm talking about a transition that is probably taking tenths of thousands of years, probably even more. And I'm not talking about some crazy multidimensional shit and transcendence. I am talking about that state of mind when you sit down for 15 minutes and try not to think about anything, that state of mind of higher consciousness and heightened awareness (where little things become apparent beyond the ego, even in yourself) becoming the standard level of consciousness for everyone. I think that this is really important, because at our current pace, we are basically driving ourself into our own destruction. We think short-term rather than long-term and this is something that non-sapient species do a lot. And see where it brought them? They live in a world where us humans, a bunch of arrogant assholes call all the shots, but not do anything really smarter than they themselves do.