This article includes a terpene overview and emphasizes recent study results that show cannabinoids work better when complemented by other plant components like terpenes. "... a funny thing happened when synthetic and ultra-pure versions of cannabinoids such as THC and CBD were produced and given to medical patients: they didn’t have the same therapeutic effects as the “whole plant” version of the chemical."
Terpene profiles are no longer a bonus. They should be expected on the label of quality products, along with any other active or inactive ingredients. Here's a couple of charts for your consideration. All of these major terpenes have been shown to have different and unique positive effects, so it makes sense that those effects can enhance or limit the therapeutic and wellness effects of cannabinoids.