To be right-handed is to be normal. The Latin word for right is dexter , meaning skill. To be left-handed is to be different. The Latin word for left is sinister . It all changes in baseball.
Most team sports look to fill positions.
In baseball, handedness matters most. The game values lefthanders overall and left-handed pitchers in particular. The more left-handed pitching, the better a team's chances. We'd corner the market if we could. A southpaw is a commodity.