If you think your captains are so easily corruptible, then you may be more comfortable in a desk job, and also presumably have little faith in managers/training dept to pick a "safe pair of hands", which to put it in a nutshell, is almost invariably the criteria (although I can see that in very very large airlines, it is difficult to form an impression of a crew member, as there are so many).
The most incompetent new captains I have seen, by a mile, were in a seniority airline, where you wait for your number to come up, most people pass the command assessment and almost all eventually pass the course. The sharpest and safest were where most of the trainers were ex Lightnings, out of the blue they would grab Bloggs, telling him,"you're ready get in the sim", about 3 in six pass the assessment, and about 3/4 pass the course.