My dad worked for Swift & Co. for 45 years. Nonetheless, when I first switched jobs, he applauded me, with "They're not loyal to you, so why should you be loyal to them?"
A corollary to what everyone said here is: always be thinking about the value of what you're doing to someone else. They always give the big rewards to people who happily take on "relevant to this place ONLY" tasks. You get promoted if you suck up to the middle managers and acquire skills that absolutely no other company values.
So if you pursue skills that are strictly "looking out for ME" you can expect some blowback. Ignore it.
A corollary to what everyone said here is: always be thinking about the value of what you're doing to someone else. They always give the big rewards to people who happily take on "relevant to this place ONLY" tasks. You get promoted if you suck up to the middle managers and acquire skills that absolutely no other company values.
So if you pursue skills that are strictly "looking out for ME" you can expect some blowback. Ignore it.