I agree, think only about your self, cos no one else will
you are entitled to disembark yourself at any time, if for any reason you decide not to travel.
if the CC tell you not to leave then this is kidnapping, just tell the CC you are phoning the police, and that they will decide the correct astion, if they wish to detain you without due reason.
Please do not try to tell me that they are the law, until the aircraft starts to move with the intention of flight, then they are NOT the law.
Only you can determine if YOU are happy to travel, and if the aircraft is delayed for any reason, you can remove yourself for the aircraft, assuming the doors are still open.
Why not travel on the lowest practial cost option, in the end of the day it is your choice, so forget the moralist view, as expressed here.
glf