They are likely to do stock buybacks which are the same thing. You’re certainly not buying them for voting rights - FB and Google almost don’t give those out, and ETFs don’t pass on their voting rights but are not cheaper than the underlying stocks.
I'm skeptical of your claim. Based on some other reading [1]:
> To manage your portfolio, you need a way to compare your different investments and decide which are worth keeping. The dividend discount model and the capital asset pricing model are two methods for appraising the value of your investments. DDM is based on the value of the dividends a share of stock brings in, whereas CAPM evaluates risks and returns compared to the market average.