On the contrary, if one is biased towards the side of a particular issue which happens to be the true interpretation of said issue, then one is more apt to be correct than incorrect. Prejudiced judgment is not necessarily either good nor bad. In fact, the extremely prejudiced person may well be much closer to the truth than is the supposed "unprejudiced" person. For example, suppose a person, back in the 1940's, was prejudiced against the Third Reich. Having seen some of the earlier atrocities committed by that Reich, that prejudiced person tends to prejudge the next Nazi he encounters at the death camp he is housed in. That particular Nazi tells him, "Oh, we just want you to step in this room so you can shower off the lice on your body." But because he is prejudiced against members of the Third Reich, he decides "This guy probably wants to kill me!", even though it is the first time he has met the fellow. But he's PREJUDICED against members of the Third Reich, so he prejudges the fellow's motives, and suspects it's NOT a shower that he is about to receive in the "shower room". Prejudiced and biased? You bet! But also in closer touch with the truth (it turns out) than his fellow prisoner next to him, who says, "Gee, this is the first time we have met this guy. Let's not be prejudiced in our assessment of him."