When I'm on my [LN], I try to make sure that I keep fairplay in my mind, and that any indies who might be flying with me, also do the same.
But at this point, many many many people in that area are used to nothing but ganks and counter-ganks all the time, so they forget sometimes that you don't need a horde of ships.
Most lawfuls in Liberty are used to fighting hordes of pirate bombers/caps or hordes of Rheinland caps, so all they know is to fly in mass groups just to 'survive' and 'win'.
But on the other hand, it isn't just Liberty, and it isn't just the 'lawfuls', fairplay is on the decline no matter where you look in Disco, and that, to me, is a very bad thing.
The best advice I can give though is this, If you want to see more people pay mind to fairplay and things like that, encourage those you're flying with to do so, whether you're flying lawful or unlawful. Be the change you wish to see.
Corny? Maybe, but it's seriously the best way to change this type of attitude in people.