Analysis - judgement - decision-making, ... certainly they are three distinct milestones in the process of charting a course through ... life. But if one's thinking is limited to mere black and white in any of those three areas, then one's ability to come to a comprehensive evalution is likewise limited. Severely. Whether your thinking is limited to mere black and white or whether it can appreciate the (comparative) subtlety of the grey-areas is what counts.
And while we're on this subject (which I think might be better served on AAA) - could you give me a practical example of what you mean?