> Unfortunately, the people signing our paychecks do care
From your experience of a dev, not a non-dev who manage devs? Noted.
My point is that I have observed, with my own eyes, devs BELIEVING they need to do the dance in front of a given manager while I've observed the same manager giving bigger paychecks to another dev that did not do the dance.
They may be several reasons for that, including sometimes the manager's fault, but also sometimes the dev's fault. For example, in the case I think of, the dev who was "doing the dance" was also not getting promoted or being trusted by their promoter. The reason was that they were often unreliable. But the dev in question said few time that if they were not promoted it was because they did not "do the dance" enough. When you are a bad dev, it's easy to blame the lack of promotion on "I'm in fact totally good, it's just that my manager is an idiot who cannot recognize good when they see it".
(PS: I'm not saying you are not good or that you are believing you need to do the dance while you don't need to. But if you are not aware that this happens a lot, then you are indeed missing a big part of the full picture and your opinion on the situation is not at all trustworthy)