Not necessarily. I’ve predicted bad outcomes for decisions in a few cases and been ignored but stuck around regardless. Mostly because I like my job and the goals of my organization even if it makes bad decisions.
Of course to remain productive and improve my influence in future decision making it is absolutely critical that when predictions come true, I do not go anywhere near an “I told you so mentality.”
Instead I do what I can to clean up the mess with a “how can I help?” attitude. And increasingly over time people take my opinions and analysis much much more seriously.
I wouldn’t say that’s the path everyone should take, especially because some work environments are just too toxic for any progress at all (I ran away, fast, from two jobs like that). And some people cherish having an entirely new type of challenge every few years instead of shepherding something through longer periods of time. All valid paths.