In House Of Quark we see a guy who abuses the assumption that he is honorable in order to steal somebody's land with underhanded tactics.
In season 7 Ezri says "Screw the Klingon Empire, it deserves to die" and proceeds to prove to Worf that he's pretty much the only Klingon in the universe who still gives a crap about honor.
I think some of you are missing the point of the Klingons. The Klingons in the high council like Gowron don't care about honor, they only care about being perceived as having honor. That is far more three dimensional than just having a few Klingons hanging around who choose careers other than being a warrior.
Pretty much the entire Klingon arc starting in Sins Of The Father and leading toward the end of Gowron was about how the Klingons in fact do not actually care about honor anymore.
Re: That DS9 ep with Ezri's speech and Worf killing Gowron. I love that Ep. It's like the writers took every hypocritical thing we had seen up til now and rolled it up into one speech. It was beautiful.