Absolutely they do. Not all of them, and it's officially an overcrowded market. There's a large range of what an influencer is, what he/she does, who his/her audience is, and, most importantly, how he/she is promoting your thing. But to assume that the average human being does not do things because others do them, doesn't desire to be someone different, and is in full control of his/her mind, is nothing short of foolish.