There are many motivations for scab/alter-ego behavior...more money and faster upgrade are the usual ones, but the bottom line is that you are stealing a job that really belongs to another pilot who has put in his time and energy at that company. There is simply no justification for doing it...ESPECIALLY today when most regionals are having trouble filling ground schools.
What a great comment. Stay away from Alter Ego airlines like GoJet. I flew for Trans States and would probably still be there if it weren't for guys who just can't wait to fly a jet and don't see the big picture. Stick with instructing until you can get the time to go somewhere worth going to.
Good luck!