I agree with the "most people" part. On a tangential note, While it's true that nobody can be expected to master and write a large and well performing application in assembly language anymore (or better than a compiler could optimize it), there's something to be said for learning the deepest and most basic building blocks (ok, if we have to go even deeper, then learning the actual opcodes for assembly language instructions). IMO, it makes it easier to understand many higher level concepts as well as different kinds of technologies (the latter to some extent). This in turn helps with different kinds of thinking when designing and debugging a program written in a high level language. Something similar could be said for "closer to the machine" languages like C.

Additionally, for those interested in the area of software security, this is a very useful layer to know well about, even if one has learned assembly language in another (popular) processor family. Knowing what features processors provide (like the support for virtual memory, among other things), and how they work, are also quite useful.