What is style? To me, it's not just good taste. A man whose regular garb consists of two button suits in conservative cloth, black oxfords, white shirts and solid neckties lacks individuality, and without individuality there can be no style.
Personal style is a consistent gestalt of individual choices, with the emphasis on individual. Where is the individual in a crowd wearing striped suits, Hermes ties and Gucci loafers?
That said, style can be consistent with business dress. The dress in the photo from Alan Flusser Custom is made up of conservative elements. It's the small touches that add individuality, like the double breasted jacket with a stripe alternating single and double beads. A uniform, but an individualized one.