Why might the social security act be considered the most important achievement of the New Deal?
The types of relief needed in the 1930s
Alternatives to the government assistance to the elderly, the unemployed and the disabled.
The scope of the act.

During the 1930s, social security might have been considered the most important achievement of the new deal. During the 1930s, many Americans needed financial relief because millions were unemployed. Social security gave aid to seniors, to have a comfortable retirement, and the federal government paid the unemployed, in order to properly function. Another relief that was dealt with was the disabled. The federal and state government gave money to families with disabled children.
The alternative to this was that the government would do nothing and the people would have to deal with the problems on their own.