Almost. If you own a share of a company, you own a share of something fungible, namely literal company property or IP. Even if the company went bankrupt, you own a sliver of their real product (real estate, computers, patented processes). So while you may be speculating on the wealth associated with the company, it is not a scam in the sense that it isn’t a non fungible entity. The sole value of crypto currency is in its speculative value, it is not tied in theory or in practice to something of perceptibly equal realized value. A dividend is just giving you return on profit made from realized assets (aforementioned real estate or other company property or processes), but the stock itself is intrinsically tied to the literal ownership of those profit generating assets.