Oh boy,
I can already see the headlines. "See what happens to those that start studying, aren't those reminders we get about education from slave class just on spot. See what happened to Nobleheart, pioneer and all...."
In the long run you must do the thing you feel is right. If going in steps with all related announcements (ending pioneering, marking speech, etc. etc.) is not your style, then there is not many options left, being involved in something DFable (quick confession/non repenting maybe) or announcing your disbelief in some recordable way. In whichever case there will be speech about you, without names mentioned, sooner or later.
CP