Wake up call.
If the infraction was done during flight, I hope the rat bastard who did Judas act against the captain was rewarded by both the company and appropriately recognized by his/her peers. These types of individuals need to realize that there is no room for acts of this type.
Another rat who wants to be a hero will do the same thing. You got to treat these pests with pesticide... and now!
As for contracted labor organizations such as BALPA, IALPA, ALPA... etc. their motivations are their financial positions first.
Start an inhouse union or association... better control on finances and interests.
Either way... good luck.