I've noticed this about Scorpio/Taurus. How rude and polite can you be?

I'm taking this viewpoint from generalization. I've noticed Taurus have a fix about politeness and how good manners matter. I've noticed Scorpio have a fix about rudeness and how the truth is important in the end. Taurus isn't worse, though. I respect that Taurus can keep the peace by politeness. and collateral damage isn't likely. much. wheras Scorpio can take measures that have collateral damage about their curiosity in regards to truth. My question is how polite can you be to the point that you won't have to lie? and how rude can you be to the point that your search for truth won't destroy your security. Upon reflection, I think this question is blending the lines between morality and immorality o.o