Most don't know what accomplishment means nor are they familiar with really great men of character, ethics and integrity. So without having any real understanding or knowledge they elevated him to the likes of a couple men they learned about in grade school. Plus, they heard Obama mention the two names in a couple speeches.
Both men were great in their time and were greatly respected. Obama hasn't done anything to be respected for, and his dishonesty, evasiveness and narcissistic behavior is quite the opposite of the two mentioned men. There is no comparison. Obama can't hold a candle to them and never will. He has brought shame on our country and hasn't even taken office yet.
He has pulled off the greatest hoax on the US of all time.