OTOH, I wonder whether the opportunity costs of paying social security taxes are disproportionately higher for the rich than for the non-rich. What I mean is if

OTOH, I wonder whether the opportunity costs of paying social security taxes are disproportionately higher for the rich than for the non-rich. What I mean is if the rich, instead of paying social security taxes, were able to invest that money, are they likely to generate much greater returns than the amount of social security benefits that they end up receiving in the current system?