Ida May Fuller is irrelevant to current payees and beneficiaries - the program JUST started back then, so it would clearly have been impossible for a retiree back then to meet today's eligibility requirements, which include decades of contributions.
Fortune magazine used to have a column called Keeping Up, usually on the last page. Several decades ago the author compared SS benefits to individual investments. He ran some numbers - assuming someone that year was retiring at 65 and had paid the maximum each year (matched by their employer) into SS since they'd turned 21, they'd get a certain benefit. If on the other hand the money had been invested to yield a real rate of return of 3%, they'd have a lump sum big enough to buy an annuity that would pay 75% more than the maximum SS benefit.
Time has passed and I don't know what annuities cost these days, but I thought those numbers were very telling.