remember, Vader only helped the empire hunt down and destroy the Jedi - the Inquisitors were the ones doing most of the work
I wouldn’t say that. Yeah the Inquisitors hunt down and kill Jedi, but Vader was doing plenty of the work himself, especially when it’s a powerful Jedi master.
Both of the Jedi we see killed in the comics after the Inquisitors are introduced, Ferren Barr and Eeth Koth, are killed by Vader directly.