I'm not a pilot but I've worked with a lot of them and the biggest difference I see with some personalities is the inability to improvise. Not saying all pilots have this problem but it seems to me that with aviation the FAA has very strict guidelines, procedures, and checklists. The marine world generally has ten ways to accomplish any particular task. Of those ten, two or three are sub par but get it done, five or six ways are pretty acceptable, and one way is the one and only way it should be done according to the grumpy old man on the dock screaming at you. Of course that one way is different depending on which old fart happens to be standing there at the time.