Imagine that you could write something that executed 10x faster, that required half the effort it'd take for you to write something in whatever language you're using right now, that you could reasonably be sure was bug-free, and that would reduce the complexity of your program by an order of magnitude.

None of that is exaggerated; I think most of the comparisons usually have a far higher disparity between Iverson's family of languages and everything else.

There are a few very plausible/simple/not at all "out there" reasons for all of this that I'll explain if you want.