Is the following statement true?
"DD 214 Increased Social Security Benefits for Vets"
That's possible, depending on your interpretation of the facts. Social Security granted deemed military wages (DMW) to people for periods in which they served on on active duty in the U.S. military prior to 2002. These deemed wages are then added to the veteran's actual wages when calculating their Social Security benefit rate.
The only part played by a military form DD-214 in this process is serving as proof of the dates of the veteran's active duty. In virtually all cases, proof is unnecessary in order to grant DMWs for active duty periods after 1967, but before that the process was not automated so some type proof was needed. Therefore, submitting a DD-214 to Social Security to prove active military duty prior to 1968 could potentially result in a veteran getting a higher benefit rate.