Having flown with hundreds of other pilots in my time with BA, arrogance is not an attribute you'd assign to very many of them. In fact, the opposite is usually the case and they will be the first to point out that they are human, prone to mistakes and that flying aircraft is a team sport.
Someone else pointed out that the BA pension isn't that great anymore. Well, it isn't compared to the old defined benefits pension but if you're joining for a 30 year career especially now with the markets in a downturn your money will buy an awful lot of units. Those units will buy you a very healthy pension when it's your turn to hang up your headphones.
Finally, BA loses a slack handful of people to other airlines every year which is why they feel there is no need to bond. Every other airline, except perhaps Virgin, is a net donor of pilots to BA. Ask yourself why these more epxerienced guys than yourselves might want to jump ship from Monarch, Thomsonfly, BMI, Ryanair, FlyBE, easyJet etc etc etc.