While I agree that there is a minimum workable level to learning to deal with both sides, I believe your position is a little biased by the fact you are not in the extreme.
Extreme introverts are in a big disadvantage in the days of "social everything". This is caused by a change in the values of our society which now believes that interacting with others is more useful than actually doing work. Now, as it has always been, far-spectrum introverts (nerds) are discriminated against by the extroverts. However, extroverts pretty much own the world right now because of cumulative effects due to teachers and employers liking extroverts more. This "likeness" is only natural, due to usually greater empathy and "communication skills".
One key point which is usually overlooked is the origin of the value change. As I see it, it is actually beneficial to employers to keep people with good relationships at hand. However, the extreme increase in importance seems to be the increase in the need to circunvent bureaucracies, which only a corrupt system benefits from