I understand exactly what you are talking about..........I get a little peeved at all the needless mail I get from them sometimes, too. They are, however, the ones who get down and dirty with those who need it.
I think they probably get bulk mailing rates with the volume of mail they produce, and take advantage of that.
I think I'd rather be getting too much from them and have them around, versus the other option I don't even want to think about............
Yeah, their recordkeeping could use a little "sprucing up" at times,too.