Jesus takes a risk to offer living water (salvation and eternal life) to an unlikely person: an immoral woman.  Jewish men did not talk with women in public (especially not this kind of woman).  Jewish rabbis did not teach women.  Jesus ignores those customs in order to offer grace to a sinner.  He shows that He is the Savior of the world.  In doing so, He turns a scandalous outcast into a bold witness.  He can do the same for any who believe on Him.