You don't have to be in the party to get the seals. Just beat them to the punch to join, let them do the work, and take the seals at the end if they want to be douchebags. (i'm not condoning this act, but in this case it seems proper)

Otherwise, go do something else. It's not like this is 2010 where the game only has one thing to do (lol)

BTW Spy, i love your sig. "Fabled chinese gil farmer" lol