Originally Posted by
jbhasban
Bodybuilders do not care about flexibility, sorry. You can get the same size muscles by going through a shorter range of motion with more weight. Power lifters, on the other hand, do care about range of motion to the extent necessary to get a correct lift (down to parallel, for example). Olympic lifters and crossfitters care about flexibility a great deal as many of the lifts require some pretty intense flexibility, especially in the calves.
Flexibility is needed for the purposes of 1) doing some types of lifts 2) doing some types of sports and 3) having proper posture. Other than that, it is fairly optional. I personally think flexibility is more important than strength. But then again I am into MMA and I am a ground game fighter.