Depends which airport, and which country.
In the UK liquids are mainly sent for destruction although I read something a while back that some airports are selling off other items on ebay
In the US as far as I know the TSA sends everything for destruction.
Somehow I don't think the same rules apply in Turkey
I've seen the looks of glee (on some folks faces) in Istanbul when they are confiscating what is potentially a high value item... so who knows. Probably divvied up at the end of a shift. I wouldn't have a problem with that if it wasn't for the fact they're such a miserable bunch there, rude and aggressive at times when there's no need.
JF