Advancing Runners

Here's an interesting idea.  If a runner is on second with nobody out and a switch-hitter is batting against a lefty, why not bat from the left side?  It is obviously easier to pull a ball to second base as a lefty than it is to hit it the opposite way as a righty, so if your goal is to advance the runner it would be easier to do so as a lefty.

A player who is willing to give himself up like that is the ultimate sign of a team player if you ask me.