Bureaucrat is not the worst card around, but it's probably hanging around the edge of the bottom 10 overall. There are two big problems with Bureaucrat:
a) $2 virtual money (which is what most comparable attacks give- and this attack is one of the weakest) is a lot more flexible than Silver. A Silver-based deck can buy lots of Duchies and Dukes, it can even get a few Provinces, but it basically precludes you from action chains. And it can't even get Provinces if hand-reduction attacks are around.
b) It gives you no benefit whatsoever this turn- and you're not going to draw that Silver because you can't really action chain in a B-crat deck. Sure, on the deck is better than in the discard, but nothing this turn hurts, and the next-turn benefit is not actually that good- the Silver takes a spot in your hand, it's not a duration like Caravan or Merchant Ship, where you get the benefit (here, the silver) in addition to your regular hand.
That being said, I do love Bureaucrat when Dukes are around.