My point was that not helping your coworkers succeed because you are afraid they'd take your job (unless that appears to be an explicit goal) is a very bleak mi

My point was that not helping your coworkers succeed because you are afraid they'd take your job (unless that appears to be an explicit goal) is a very bleak mindset, and probably self-limiting too, as far as one's own career goes. My goal is to eat candy and poop diamonds, I don't have altruistic motives towards junior developers :)