(-> (california) bay-in city-on) ; "The Californian bay's city"
vs.
(city-on (bay-in (california))) ; "The city on the bay in California"
The former ("->") starts with what's fed into the pipeline, the latter starts with what you get out of it. In addition, "->" avoids the nesting of expressions regardless of the number of steps, which might be useful in some cases. But both styles have their place.
and
(e (d (c (b (a (initial)))))) is like "The Californian bay's city".
These variations are different thematic structures to language.