When I say brandish I mean wearing it like a golden robe for all to see, "see me I'm more powerful than you." /strut
Against enemies, Jedi Knights and Masters invariably try talking first. Padawans and those tempted by the Dark Side sometimes strike first and ask questions later, but they are the exception.
That's just tactics. I'm talking more about ideology, the reason why they join dark side if it isn't more powerful.