To think that one pilot group intentionally votes in a contract to undercut the rates of another airline is not accurate. Each pilot group is dealing with a different situation and (usually) different management under different circumstances and gets the most that they can at that time as determined by a majority of the pilot group. It aggravates me when someone I'm flying with says something like "There's (airline X) stealing our flying" and directing their anger towards the pilots when the pilots have absolutely nothing to do with what routes and for whom they fly.