> Not really, the rise usually happens after years, or even decades, of paying dues and hard work.
Sure, but it happens because of your public image, always with a "big break" or a "breakthrough".
> At least most don't.
Actually, most do. There is almost always the one big break, where you are launched into the public's view. It is a step function.
Pick a number of artists, and look up their career, for most of them you'll easily find their "big break".
> A person can be fired from their non public job for saying something wrong on social media, without having ripped anything
Sure, but that's a different topic. I'm focusing on the public-figure part of it.
> Public figure means their job is to make movies for public consumption, not that they have to suffer any BS paparazzi. There's no inherent tie between one and the other.
Oh, there is, and plenty of it, the relationship between the "fame industry" (magazines, publications, etc.) and the public figures is a symbiotic one.
And the more you rely on the fame industry to fuel your growth, the more you're exposed to its risks. It is a deal with the devil.
There are, however, public figures who simply avoid the fame industry. They are harder to find, and have a harder time succeeding, but they are there (Daniel Day-Lewis, for example).