I always found buzzwords to be both purposeful and innocuous at the same time. The effect seems to be to present the speaker as dynamic but at the same time not

I always found buzzwords to be both purposeful and innocuous at the same time. The effect seems to be to present the speaker as dynamic but at the same time not saying anything too controversial or that can easily be refuted in normal conversation. I am sure there is a genuine motivation behind this form of speech - any linguists or psychologists care to shed any light on this ?