I dunno, I'm just in it for the pretty pictures.
Seems to be the way for deep sky anyway. For many of us it's more of a form of art than science. The colours rendered to the final image are not necessarily the "real" colours. But then that goes for both amateur and pro astronomers.
Do we want to please ourselves or our piers? In photography there's "rules". The rule of thirds, don't let a portrait subject's nose cross the cheek line, etc etc. Some colours go well together, some don't. Sorry Australia but green and gold together are puke! But that's my opinion.
Are there any "rules" for astrophotography? I don't think there is a correct answer for what colour something should be. That died long ago with the emergence of the Hubble palette lol.
P.S. I'm also mucking about with daytime IR photography. With channel swapping the colours can be really bizarre, but fun!