In the case of lawyers though, it's more akin to paying someone to find and document edge cases.
That tends to end up verbose.
In the case of other realms, it's just padding because previously word-count was a metric used as a proxy for quality or depth of analysis.
In effect, we pay lawyers to be ridiculously pedantic for us where pedanticism is required or desired.
That level of pedanticism elsewhere, though, is incredibly annoying or precisely what is not desired.