But that does not automatically mean dividend ETFs are superior investments. That said, many investors conclude from this debate that dividend ETFs are either excellent investments or poor ones. Why dividend investing still worksNone of this is to say dividend investing has not worked. But when I look at why dividend investing has been successful for so many people, I think there are two explanations. However, diversified dividend ETFs using systematic screening methodologies tend to reduce much of that company-specific risk, while capturing good value exposure.