Java dev in charge of a $100M product here. Can't actually compile it with less than 32 GB of RAM.

My old job working with a hydraulic analysis firm, needed 256 GB to run the product it in local development mode; to run customer models in production was a mainframe job - typically multi-terabytes. Computational fluid dynamics eats all your memory and asks for more. My work computer would have been pretty shitty as a gaming desktop, but did have every memory slot maxed out.

Yes, you might be working on something more lightweight, and that is fine. That doesn't mean that your requirements are the be all and end all.