In my opinion, none of these shoulder treatments would be considered inappropriate in even the most conservative setting. As others have mentioned, its certain sleevehead treatments..such as a spalla camicia with puckering in the sleeve fabric that would garner more attention and could possibly be considered less than conservative.
I think it would be great if you put out some suits or jackets with minimal or no shoulder padding. Please, though, don't have narrow lapels like the first three pics. Pic #4 from Canali looks much more balanced. Oh, and try a 3-roll-2 configuration.