Walking is very important for baseball players. The ability to draw a walk is key as every walk represents a non-out. Outs are bad, you see. The making of outs runs counter to the entire idea and mission statement of all baseball teams and baseball players.
The “statistical revolution” of the last twenty years helped to solidify the walk’s place in the game. Moneyball and the resultant discussion helped demonstrate the value of on base percentage to an all new audience.
Everybody knows a good player takes his walks as they come. No need to be passive at the plate but, if they don’t throw you strikes, try not to help the pitcher out.
Which isn’t to say only patient hitters are good and players who don’t walk are bad. Nothing is ever so simple.