I can't be the only one to have noticed, but if you take the Noble background you get Courtly Graces, and training in Nobility Lore.
Courtly Graces lets you sub Society in place of Nobility Lore for recalling knowledge and a few other things. Except both Lore and Society are Int checks, so since you get the free Lore training, your modifier will be the same.
So the benefit of the feat is nothing when you first get it, or worse if you don't invest in Society. (This was even worse before with Signature Skills, since if your class didn't have Society on its list it meant that you also had a cap of expert that Lore didn't have.) The only advantage I can see is if you're a Rogue, you can get Connections at level 2. Everyone else, skill advancement isn't until level 3, with first opportunity for an expert feat at 4. So if anyone else really wanted Connections (or just Courtly Grace without also having Nobility Lore) they'd be better with taking Courtly Graces at 2, and picking a different background with a different feat and Lore.
TLDR; If you want Courtly Graces, you don't want Nobility Lore, because having one makes the other redundant for most characters.