The saying "if you want something done right, do it yourself" - leads a person to believe that nobody else can do something right. Amirite?
I enjoy looking at older sayings that have been around and are part of every day speech and then trying to find a way to see through them or find a loop hole in them. Kind of a way to have fun with a sometimes tedious language.
The song probably has nothing to do with the post other than "doing it right."