I'm not going over board :lol: it's just the reality. Sure there are a lot of other technological advancements that have improved efficiency (e.g. micro processors), but I'd argue none more so than plastics. What used to take hours to either make dies to cast, stamp, extrude, aneal, plate, polish, paint, etc. now takes on average less than a minute to produce a visually appealing component or finished product.
Now there's definitely something to be said about craftsmanship and durability, but plastic makes everything faster, cheaper, lighter; and that's what capitalism is all about.