These are all long term solutions, and good ones. But life isn't always that simple. Why let one bad dev ruin it for everybody else? It's a bit like one person

These are all long term solutions, and good ones. But life isn't always that simple. Why let one bad dev ruin it for everybody else? It's a bit like one person being rude. Would you leave for that? I meant it more in a "accept it and move on" way. To be honest, if you're in a similar situation at MegaCorp Inc, you already have to put up with many things out of your control. But should we as professionals an answer to this problem? Or is it a management problem? (Although that's a cop-out, because that's still part of our profession). Is it human nature? Do other professions suffer from similar situations? These are interesting questions, to which I have no answer yet.