That reminds me of the story of the cured blind man in John 9. The Jews thought it was a big con and saying that the Messiah had done this risked his (and possibly his relatives') expulsion from the synagogue. After repeated questioning that was leading them to an uncomfortable conclusion, the leaders, who couldn't adequately argue against the man's testimony, hurled insults at him and said "You were steeped in sin at birth; how dare you lecture us!"
Powerful men's attitudes don't change, huh?
Trying the Jehu example wouldn't have changed anything in your case, Eu. Biblical instances like those are fine when applying them to the past (apostate Israel) and the present (apostate Christendom), but they don't stretch in application to the WTS' 'pure' system of worship. I'll keep Jehu in mind, though