> The day I started wearing nice collared shirts and very subtly encouraging/allowing people to assume I come from privilege like they do (like almost everyone reading this does), I experienced an incredible reversal in career momentum. It completely turned my life around.

Sorry to hear that, but do you really think it's the perception of privilege? Isn't it more likely that you just started projecting the image of a competent pro that has his shit together, and people just responded to that? The only way to know for sure is to maintain your image while divulging your background. If your fortune changes, then you were right. Personally, I suspect people will respect you even more because you're even more competent and accomplished than your false image.