In this movie he beautifully states:
"Years ago my mother used to say to me... She'd say 'In this world Elwood, you must be oh so smart, or oh so pleasant.' Well, for years I was smart; I recommend pleasant. And you may quote me"
Here I am now to correct you. Forget pleasant.
Not knocking the squeaky wheel. That only comes out on a need basis. To really get by in life takes more honey than vinegar.