There are legitimate reasons to need that much RAM. What I don't see people doing though, is asking if they are using the correct tool (laptop) for the job (video editing, data processing, compiling, etc).
There is no serious Mac server, period.
Don't do the middlebrow thing. It never works.
(I use an MBP as the brain of a multi-camera video studio; I totally get why one would buy a Pro. But I'd pull 100% off of Macs before buying one.)